Cool edit, kllermonkey! As you mentioned, it's not perfect, but you did a great job in combining the "best" from both versions.
This may come off as sacrelige but I thought I'd just throw it out there: there is a (short) musical number in Jabba's palace in the animated Clone Wars too. I couldn't find the clip on YouTube, but even though it's a cartoon, it looks and feels less like cartoonish than the 04 version.
The music in that scene is a little more exotic. There is another musical bit from the Clone Wars movie that might work too. Here are the links:
Maybe it's possible to use those tracks to create a shorter, maybe more Oola centered and less childish musical number for ROTJ.