Kelsey Hayes brake spindle?

So what I'm gathering is the K.H. 5 on 4 disc brake spindles are a no go for the wilwood setup unless I get a sleeve from Dr. Diff. Or just get 73 to 76 A body 10" drum spindles? Is this all correct?

Thanks for the fast response guys. Just trying to figure this all out, prob gonna order wilwood setup Friday.
I guess that I'm confused - Disc vs Drum. -- What I was wondering -- Is there a way to convert My Kelsey Hays, front, disc brakes from 5 on 4 to 5 on 4.5 without changing uca etc. ??