3/4 ton 4wd front wheel hub help!

[freakshow108]

Ive been looking everywhere for more front wheel hubs for my 71 k20 and have come up empty. I know you guys can help. Im trying to convert my eaton ho72 rear to discs, and ive found the bracket and only need the hubs from 71 through 76 k20s. Can anyone please lead me in the right direction? All of my local wrecking yards are a no-go so im reduced to begging. Thanks for any help you can give. by the way i am converting because the patrs for the eaton and specificaly the 71 are becoming too hard to find and way to costly.