8 3/4 SBP disc

Anyone know if there are sbp disc conversion for a body 8.75 rear end?

I know most people wills say just swap to LBP

But I already have the wheels I want and really don't want to swap out my KH 4 pots. And then have to source Lbp wheels/tyres etc. that's all just an extra expense I dont a actually need.