I noticed there looks to be an option to run a 6800 instead of a 6502. Did anyone ever do this or see one this way?
yes, it was done in 2013. A 6800 monitor had to be written and some mods were needed to make it work. As far as anyone can tell, Woz never tested the 6800 option, and yes we did ask him. Perhaps a 6501 would work without mods, don't think that has been tried, at least since Woz built his prototype.