I wouldn't object to refinishing on the grounds of destroying collectability value, as it has none. I wouldn't refinish it myself, as it is a fair amount of work, and not really worth the effort. Having someone put on a polymer coat is also not cheap. You can do it yourself, but it is best done over a Parkerized finish (phosphate) if you expect to get any coating adhesion, and that's another operation you have to (or should) perform if you expect good results. It's your money so you can do what you want - just make sure you know what's involved, the pitfalls, and what it will cost you.

Were it me, I'd leave it alone as a cheap shooter. To quote Sarah Palin - Like putting lipstick on a pig.