I know a fellow that has a 1875 Colt SAA (Peacemaker) It was old, worn, original but functional. It had a value of about 2K dollars.
Against my advice, he took it to a gunsmith and had it “repaired”, detail restored, and reblued. The value now???
About $200. Shoots great!
It now sits in a display case on his mantle; as a monument to stupidity.
At least he didn’t do it to a Walker...
Even a refinished, reworked Colt SAA is worth at least $900 these days. I've been following the gun auction lately, and none have gone for less than that. Trust me.