Lug pattern help.
Spacers/adapters will be around 1" thick. You will lose 1" of clearance at the fender/tire because the adapters push the wheel out 1". You'll probably need wheels with more backspacing than normal to compensate for the adapters, so you might as well just get some SBP wheels that fit.
Also, if you redrill the axles, you have to redrill the brake drums too.