First off, thanks for looking

I have the chance to buy some USGI 20 rounders with Colt floorplates. These mags have been refinished and I don't know how much that influences the price.

-USGI 20 rounder with Colt floorplate
-Refinished with Perma Slik
-Wolff Extra Power Chrome Silicon Spring
-New Follower

-New floorplate, old follower and old spring included to use as spare parts.

I realize that USGI 20 rounders sell for between $15 and $25 on the EE, but what about mags that have been refinished and include the spare parts?

Thanks in advance!

I wouldn't pay more than USD 20 for each mag. Remember, these are used items, even if refurbished.
But again, that's just me...

No more than $20

New followers?  There's no source I'm aware of for USGI 20 round followers.  The original mags are the most reliable mags ever made and they don't need to be tricked out.

Georgia Precision sells refinished USGI, but other than the finish they're original.  And excellent.

-- Chuck