Personally, I can’t shoot irons, mainly because I’ve never had all that much practice (kids nowadays, huh).
Also a rifle is a tool, it can be a work of art, but none the less function comes before form. For a rifle to achieve its highest function for me, it requires a scope. This isn’t a 20k rigby I’d be flushing down the drain, but a 2k rifle. I can take the hit on losing collectors value if I get the pleasure of hunting with it.
If you purchase it, it will be yours.
I would advocate for showing the utmost respect, however, for such a fine and unaltered MS.
Once permanently altered it can, of course, never be original again.
If you
must have a 'scope, please consider a proper 'German claw mount' and have it done only by an expert with vast experience.
The claw mount is a thing of beauty, versatility, and (along with now extinct 'Vienna Snappers', you'll know you've shown proper regard and respect to one of the finest rifles ever produced, regardless of cost. A claw mounted 'scope removes with one hand in an instant and always returns to precise zero.
I'll double down on advice here to try out a 'scoped MS first and see if the 'scope placement works for you or if you can retrain yourself to like sighting with chin on cheek rest.
I don't mind it a bit and, with my period claw mounts, always have the option of sighting with 'scope and then settling down to cheek rest and shooting under the 'scope through the iron sight.
Also, try to become accustomed to shooting her 'through the iron'. The MS (particularly the stutzen) is designed with perfect balance, dimensions, and cast of stock for 'snap shooting'.
Put the rifle (unloaded) on a table, imagine you hear a charging leopard behind you, grab the rifle and bring it to your cheek while sighting down the barrel... you'll be right on target!
Another option would be to purchase one of the later models which were designed for 'scope use, had a 'flat' machined on the side of receiver for easy 'scope mounting, and had a 'guide ring' in the Schoenauer magazine which allowed for greater versatility of cartridge and bullet profile: