Hello, sir. Some years ago I stumbled into a Nat'l Match that had been used very, very little....and apparently cleaned less. It had a fine patina of rust over most of the gun!
Very sad.
I got it for a song (around $300 if I recall correctly) and had some minor work done.
The entire pistol was black parkerized
and the special Gold Cup type spring-loaded sear was replaced with an Ed Brown. One of his hammers was used, too. The gun was fitted with an Ed Brown grip safety and a trigger job done.
I use it primarily with 200-gr. CSWC's. I've done nothing with the sights and am satisfied with them. I suspect the front sight will eventually leave the gun as it has the small tenon, but when that happens I'll have it replaced with either a large tenon front sight or have a dovetail-type front sight added.
Speaking only for myself, if you like that particular gun, I'd fix it to suit me and use it. If you can sell it and get a base gun you like better, such might be the way to go.
It's not as pretty as many, but I don't have all that much in it and it shoots quite well and is reliable. I plan to keep using it.
Best and good luck.