My pleasure. Where you hunt makes a some difference; this works well for central Namibia in the winter and assumes you will be staying at a place with daily laundry:
Boots: Probably the only thing you cannot replace for any money is broken-in well fitting boots. I wear a pair on the plane and pack a second pair. Carry-on vs. checked is negotiable, I've packed the second both ways and lean towards carry-on. Stuff clothing (socks, underwear) into the packed boots so that the toes cannot become deformed/crushed en route. Although you may wish to pack moleskin/bandaids, etc, it is far better to prevent need for those items by wearing appropriate footwear. Some people may wish to have a pair of camp shoes as well and if you wear typical over-weight, over-engineered American boots it is not a bad idea. A lightweight pair of boots is a better overall choice in my opinion.
Socks: One pair on your feet, one pair checked, one pair in carry-on.
Pants: wear on the plane a pair of no-iron chinos that you can hunt in in a pinch and you will be covered for a trip into town. Two pairs of hunting pants or shorts at your preference, one checked, one in carry-on. I use BDU pants and prefer to cut off the thigh pocket.
Underwear: as with socks, three total, with one in carry-on. I've gone 4 days without my checked luggage in Germany and so long as you wash in the sink each evening, it is not too bad.
1 Belt, worn on the plane.
Shirts: A no-iron oxford shirt on the plane covers you for town and if you chose colors carefully, you can hunt in it if your luggage goes astray. Two hunting shirts, one in checked, one carry-on.
Sun hat, in carry on, your choice. A watch cap is convenient to have in the AM f you get cold easily and would be good reason to keep the thigh pocket on your pants.
I get cold very easily and freeze my ass off most mornings if we sit in a stand. So I bring a pair of pajamas that I can wear under my clothes in the morning if needed. IF walking, do not wear anything under your clothes as you will overheat. The morning is cold but it warms up quickly and it is better to just walk off the cold than it is to have to try to take off long underwear. Most people will not need this unless sitting in a blind overnight for leopard.
Outerwear. Checked. As needed. A sweater and an outer layer works for me. Wool is warm but picks up seeds and thorns and is best as a middle layer or at the lodge a sweater can be helpful. If you are going to walk in the morning, these will help for the truck ride. Ditch one or both layers before walking even if you start out cold.
Spare glasses if you wear them.
Cash can solve almost any problem.
Talk with your cell phone company before you go. You should be able to get a text plan that is inexpensive.
Toiletries you probably don't need help with, but I do recommend strongly that you bring a toothbrush, floss, and a tiny toothpaste in your carry-on. Take a shower and put on a 48 hour antiperspirant before departure. You are going to be grimy from a day on a plane any way you slice it, so avoid the TSA hassles and just pack antiperspirant and toothpaste in normal size in your checked luggage. Easier than dealing with the mini sizes allowed in carry-on. If your luggage gets lost, you can stop at a store en route from airport to the lodge. Bring whatever you need, but less is generally more. People have their quirks, so accommodate your own peculiarities. I always seem to need a nail clipper at the most unexpected moment, so I have one in carry-on. Most people could live without. My wife packs soap, for what I cannot imagine- they bathe in Africa and use soap which will be provided. I do carry Q-tips as I like to dry my ears. In a pinch, one can improvise with toilet paper, but a ration of 2 q-tips per day makes the list even for a minimalist like myself.
Your need for sunscreen is dependent on complexion and base tan. Better to use more than you need than spend half the trip recovering from a sunburn.
If you are going to carry binoculars, get one of the elastic waist straps that stops it swinging from your neck all day.
Weigh your packed luggage before you leave the house. You already have a rifle case to deal with and pay for; make sure you are well under weight on the other checked bag. If you are anywhere near 50 lbs you've probably overpacked for a ranch/lodge hunt. I had just about 33 pounds for my hunt in Argentina which included a week at a ranch then a week in the city, so I basically had to pack for two trips.
I very much prefer a soft-sided bag without wheels- the bag itself including the wheel hardware can be a fair bit of weight otherwise. My bag has shoulder straps. I find it easier to maneuver through the airport with a backpack than dragging a train of luggage. My wife prefers wheels, I think this comes down to upper body strength.
One luxury I do pack is my down pillow. It weighs nothing, compresses to nothing, and it can serve to protect binoculars or other delicate items. I am very fussy about pillows and it is worth the few ounces to me. Pajamas are a consideration- the sheets may not be all you hope for and pajamas can also serve well as a base layer if you need them for warmth.
Use your cell phone to take a picture of where you parked so you can find your car in two weeks.
If I think of anything else, I'll let you know.