These were going to be made by Hasbro a few years ago. They were going to be Wal-Mart Exclusives. However Wal-Mart dropped them and they never made it to market. it was right after all the episode 1 glut when they had figures just sitting there not selling because of over production. a prototype of Max was created and shown on a website in his unpainted form. he actually looked good. the other rtwo and the organ were not made to my knowledge at least I never saw any pics of them. I would love it if Sideshow were to make them though.
I have to admit, that now as time has passed, I'd no longer hold serious interest in collecting these. If more 12" from the Jabba part of ROTJ were to be made, I'd really want a 12" Klaatu, Barada, Nikto, and Weequay. Those would look awesome in SideShow's scale.