Have you ever thought about setting up some camera traps when you travel around these remote places?
This picture made me think that you might get some interesting stuff if you did.
I did meet a guy at Danum Valley a few years back who had set up some traps and got photos of binturong and such-like. I think I would just find it frustrating that I hadn't seen it though.
I've done some camera-trapping at Danum as well, but didn't catch anything too interesting (Malay civet, bearded pig, great argus, etc.). It's a useful tool, although I tend to agree with Chli that seeing things with your own eyes is more satisfying. Live-trapping, on the other hand, is great fun.