I agree that if its sits level its cranked about as much as you want to go. A 3" body lift and some bumper trimming should clear 35's. Sounds like you have the room already. The rear willl fit 35's stock if you dont have stupid wide wheels.
Here are some examples
This is my current truck with a 2.5" suspention lift and 33's
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This was my 97 with about 4.5" of home brewed lift in the front and zero lift in the rear on 315x75x16 (basicaly 35x12.50)
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Note that I had also built a pre runner style bumper that helped with front clearance.
in these pics you can see the rear tire is STUFFED but it never rubbed
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The driver side rear was on the bumpstop so it couldnt stuff any further
I drive this truck for a few years like this and didnt wear any suspention parts out. HOWEVER with this much lift and being basically a crank to stupid extremes I could blow a front CV at will. All I had to do was turn all the way one way or the other while in 4wd and one of the CV's would pop. I had aftermarket upper a-arms and flipped ball joints and only about 3/4" diff drop.
Friends dont let friends drive these kind of angles LMFAO
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I would like to note that I DID know what I was doing and I did know it was NOT right. Also I was not nice to this truck! It seen lots of air and lots of whoops and lots of high speed desert trail running. Other than a few cv axles and 1 blown out front shock (funky landing after a good sized jump) it didnt wear or break anything else. I did put all new parts in when I lifted it this way; ball joints, TRE's, pitman and steering arms, shocks, sway bar bushings.