Yeah, a full size spare would be handy, but honestly, you could get away without it if you need to. There will be enough of us there that if something happens, we should be able to get you out. Either way, it wouldn't hurt. You should be able to find another stock rim on eBay or at least an Isuzu rim of the same size.
I just bought two military jerrycan holders and I have an idea for how I want to mount them to my roof rack. I have a few other minor, pre-Moab mods to complete and I *might* (depending on money) try to do a 1.5" lift before then.
Not sure yet, but I just got my time off approved!!
w00t!
Bart