Small Bolt Pattern Wheels Don't Fit Wilwood Disc Conversion

would going to LBP fix that?
The center hole on the LBP wheel that is similar to mine, the ones Wheel Vintiques sells, only has a center hole of 2 7/8, so I'm not sure if that would work seeing as the diagram states it needs to be 3.01". I measured the wilwood hub and it appears to be only 2 3/4", but it was tough to measure accurately as my caliper isn't that deep. The other problem is that my rear wheels would still be SBP and it wouldn't be able to rotate the tires.