Seems like 8-10.5 is the rim-width range they call for; who's running what size? I've heard 10" wide is best.
Given the rearend width & leaf spring location (3/4" relocation brackets) that's with on this car (Duster), 10" wide with a 5" BS would be perfect, but that's a really hard BS to find; 4.5" avoids spacers, so that's next best...
(I've already pie-sliced the front of the opening, trimmed the wheel-opening flange, and rolled its upper edge, so I have 13.5" of wheelhouse width, and there's 6.5" from drum face to springs.)