There are many variables in what works in moab. The biggest thing is if you cobble something together, moab and the traction rich rock will reveal it's flaws quickly. As nakman noted you don't want to be that guy.
IMHO a standard setup for most trails to have a good time are 33-35's a 2-4" lift and a rear locker. If you want to run without a hard top have a roll cage. That's really it.
Taller you go the wider you'll want.
That'll get you a good start to then build something more specific. I'd set it up basic, run some trails and see what you want to do going forward then build it to that.
what trails do you want to run? are into overlanding, or do you trailer your 40 to where you wheel? Everyone here has the perfect setup