For 35s I trimmed roughly along the stock flare outer edge on 4" lift height, rear cut 'n fold, and didn't have any rubbing issues. IIRC around 3" bumpstopping. Looking at the BW flat fender flare installation instructions and what people have posted on the interweb, I'd say you've got a pretty good chance of succeeding with the setup you're thinking of.
Don't count on me though, I'm judging this by only looking at things through my screen
1998 Grand Cherokee 5.9 LX daily driver, 1.75" BB, 32" KM2s, HPD30 Eaton e-locker/D44a stock LSD, 4.56 gears, custom- fabbed tube bumpers and tube fenders,...
1990 XJ Limited (4-door), 4.0 I6, AW4, NP242, ***rolled and totalled @ 165k miles***
1990 XJ (4-door), 4.0 I6, AW4, NP242, PBR 42" tires, Unimog 404 portal axles, 110" WB, full cage + uniframe completely rebuilt, front 3-link + panhard / double triangulated 4-link rear,... ***SOLD***