Those will be nice additions!
For my 15 mm stuff, I've got baboons (3 poses, 3D printed by a friend for me - no idea of source), HO chimpanzees that are fine models but 3rd rate for my purposes and too small but all I've been able to find (except the one that comes in the old Airfix/HATT Jungle box (Tarzan), trunk monkeys from Irregular Miniatures (monkey on a cut-off tree trunk), and gorillas from a few sources: the DDA from Bluemoon (think the movie Congo gorillas), toy shop items (Toob), and some beading items, plus Highlander Studios. Makes for a nice collection but could be better, for sure.
Glad to see you stopping by here because a lot of us are enjoying this thread.