AZ Guys Need to borrow 15x8 wheels

ok well i went and tried to measure it all up to see what i could come up with... i like using a wheel cuz i get a real world fit but tell me what you think of this...

so i have an 8.75 with BBP A body axles (not redrilled ones for b body brakes)

i took the wheel off and first measued it that 11.1 section width would even fit and it does!

ok so i measured and got from the brake flange to leaf @ narrowest point was 6" even...

did the same to the wheel lip(rolled) and got 5.5"

so i have a hole of 11.5" that will be filled by a 11.1 section width... not alot of clearance...

so then i figured 11.5" opening MINUS the 8" rim gives me 3.5"... now divide that in half and you get 1.75", or the distance each side of the rim to the narrowest points...

with does that it gave me 4.25 from the flange back (or a 4.25BS) and 3.75" tword the out side (this is with 1.75" clearance on both sides)

so what do you think?? just go with a 4.5 BS and then use thin spacers to make it just right?

thanks guys maybe this is easier than borrowing wheels...