I don't know that it would be cost effective. Seems you can find a set on ebay of replicas for what it would cost you to refinish the stock wheels.
I took the stock 22s off my 07, they're in pretty rough shape. I replaced them with something a little smaller, a very clean set of OEM 20s from the previous generation Escalade. Picked them up off of ebay for $700 shipped a few years back.
Before I bought the used OEM 20s, I looked at replica chrome Tahoe 5 spoke 20s on ebay for around $800 shipped.