I have had a good <a href="http://www.ntsearch.com/search.php?q=time&v=56">time</a> in DRC with Bendix/King KLN 89 & 90's, very reliable in my experience.
Good advice though: a standby GARMIN 3 OR new 296 wont hurt!! My old man has a new 296 and its pretty good bud!
O, seeing that you flying un- pressurized a/c around there ALWAYS study those GRID-MORAS.....especially in NE DRC, Beni, Bunia, Goma etc.
Enjoy the jungle and say hi to Bunia for me
Happy Landings