Anyone know where I can find 54.1 hub spacers for my E30 ( 4x100) that will make my wheels ( i think 74.1) hub centric?

I bought the wrong 20mm spacers, and my wheels need to be hub centric.
Btw these are for sale now, they are new and were on the car once.

Thanks!
-Jon

P.S. I was wondering if tire shops have these spacers maybe in 3mm in plastic that I could just put after my spacer....?