Well, in working on this I've decided that I'm sticking with the orange/brown for the initial setup and then moving to colors afterwards. I've done MAME, NES, and SNES so far.
Regarding the vert setup, prob. won't be done simply because I don't have a vert. monitor (yet). Also, I could do a cocktail possibly, but once everything else is done. It would actually take a decent chunk of work because of redoing all the control graphics (maybe). I can't promise anythingon this.
I will, however, release the illustrator files I use to make the redo so people can make their own. That should save a ton of time.