They probably wont rub significantly, BFG's run on the small side. This is where my Nitto 295's touched on the stock rig, with stock rims, just enough to leave a mark.
My BFG ATs rub a little on the inside also. But I only see it on the inside fender well just like above. The OME 2.5 lift really only gives you stiffer springs. OME shocks are real close to the same length as stock Toyota so a small lift doesn't get you more travel like the bigger ones. You'll be fine.
I run BFG 295's and rub with an OME heavy/medium lift. I had the 295's on with the stock springs, but was too afraid to wheel/flex it (for fear of losing a flare or some crap). I really don't think it would be a problem.
Rubbing doesn't bother me. It's at crawl speed when it happens.
Here is what mine looked like with stock springs and 295's.
I can't believe my rig used to look so clean . . .