I would suggest the speeder. Not too expensive, not too big even though it has dual batteries. And it won't jump out temp control, even if you put a non temp control coil on it. You have to manually change it. Mine also seems pretty sturdy. No idea about the paint, haven't had it long enough. Get the silver one and even if does wear you probably won't notice as much. I like black mods, but they tend to show wear easier.
Check out DJL's and Phil's reviews on it, they are pretty in depth. And after buying one I can mirror pretty much everything they said.