It would be very exciting if you did continue with this project, TM. I've lost count of how many times I've watched it for inspiration since I got my copy. I'd never seen an edit before with this much promise.
I think the voice work is the biggest hurdle to get over. Your new Lama Su voice was pretty perfect, but all the others needed better execution. Once the voices are done, rebuilding the sound mix to accommodate dialogue/music changes is the next big challenge which, whilst tedious, isn't a huge deal I don't think. It just requires time, patience and dedication in finding replacement sound effects.

I don't know how I could help out, but I'd be happy to lend a hand in any way you can think of :-)