SPOA + 34" LTBs?

[One Sick Puppy]

I'm in the process of completing an SPOA setup on my 1990 Samurai. I have in mind that I want to run 34x10.5 LTBs using 15x6 (?) stock rims, flipped (which appear to give me about an extra 1-2 inches of spacing). Also going to put 5.12 gears and a doubletough axle in.

I realize that it's going to be difficult to clear these tires with a simple spring over. However, I don't mind cutting up the fenders and other things to clear the tires. My question is: where exactly should I expect the tires to rub / have clearance issues?