As of right now the species I'm most interested in are Crocodile, Hippo, Cape Buffalo, Warthog, Giraffe, Gemsbok, Sable, Kudu, and Lord Derby Eland.
@Erich looking at your choice of animals and what you're wanting to do we need to firstly look at where ALL these animals or in this case MOST of the animals occur.
I would say that you're looking at Mozambique minus your Gemsbuck ( South Africa , Namibia , Botswana an limited in Zim) and LD Eland as that's a stand alone $30k hunt. Regular Eland are 2500-3000 . I would check on imports though as USFW an CITES won't let hippo in from Moz and I'm not sure how many giraffe are out there.
Another option would be Zambia especially along the Luanda River.but again no Gemsbuck .
Matetsi Zimbabwe will also be a venue.no Gemsbuck though.
Tanzania is an option but they only have fringed eared oryx .
Namibia in the caprivi? That should have all your animals. Except the LD Eland but regular Eland abound.
Then one or two private game reserves in SA are big enough. Minus the croc and hippo. Charter flight into camp etc rhino elephant etc walking around.
All these areas are represented by outfitters on this forum and I'm sure that with time an due diligence you'll le find what you're looking for.
Just keep in mind that the old romantic Africa is of a bygone era.
Warm regards and happy hunting
Dave