One should never underestimate dangerous game, especially buffalos, whether the two African species or the many Asian ones. Unfortunately we only have one left in Europe.
To come back to the initial question of the post, it does not matter, whether in Congo or Cameroon, hunting forest buffalo is expensive compared to the classic buffalo hunts in the savannah, in all cases for foreign non-resident hunters. Even more so if you take some things into account in this hunt, including the fact that hardly anything else can be hunted. Hunting forest buffalo is primarily something that is offered as part of a Bongo hunt.
We keep hold of, maybe someday something will work out.