Yeah, Yoda's story arc in s06 was the first I've seen it. Watch the show on your PC/Mac and just take screenshots. Other than that, you may need to wing it.
I just watched the S6 Yoda episodes today. They show the fighter from several angles so as long as you can pause the show, you should be able to get just about everything you need. Good luck.
Looking forward to seeing this tackled.
I'd recommend vacform. A guy i know made a replica of the original EPIII JS concept in vacform and it was awesome. The same techniques will work on this one.