Unfortunately I'm a cheapass, with a matching budget LOL.
Even if I could/did find a cover @ a price I was okay with, the machining of the hub would still also add to the total cost.

Machine shops around here aren't cheap, and even small jobs are sometimes ridiculous in price.
I honestly think they give a stupid $ quote sometimes, because they just don't want to do the job.
Some won't even do small jobs, and understandably it just isn't worth it to them.
Like when I asked a local shop to weld a pair of AN fittings on an oil cooler line flange....$40/ea. was the reply
Yet all their guys are standing around with their thumb up their ass in shop...
I went to a local AC shop, and they charged me $10 for both, and it was done in like 10 minutes.

Most of the local small machine/speed shops that once existed, are long gone. Used to be a couple real good ones here, but
no longer the case.