Tooele ER has been advertising that you'll be seen within 30 minutes. I don't know what happens if your not, but it could be leverage to get your $542 bill down. Go to billing and make a fuss.
If I were going to run a 38" or bigger tire I would deffinately want full with 60's. with that size tire and lift to go with it your going to pretty unstable going with TJ axle width. It will be alot more stable going full width.
I have steel, because I couldn't afford aluminum when i bought the rims. If you have the money I would spring for aluminum. Steel is cheap to replace :D