You could get away with a 9" in the front but a 10 or 10.5 is about your limit in the rear. I have a billet rim which is a 8.5" 235/30 front tire and a 10" 275/25 rear tire.
This is exactly the information the OP is looking for -- what you need to run 22s. NICE!
I hope he's looking. Have any more pics?