Good chance of picking up a used Tactical model and the photos from the seller show some light wear. Slide release and rail (from flashlight)

This is going to be a shooter and not really a collector... Is it worth it if I keep the original finish or send off to the SA Custom shop for a full black refinish? I also want to upgrade some of the parts to Wilson Combat, just for reliability long term.

Not sure if the SA Custom shop would install someone else's parts...

Opinions appreciated!