UKW, I think the Gold Cup would be a good choice. I have owned several '70 series GCs, as well as a blue GC Trophy and currently a stainless GC Trophy. I do not believe they are overpriced. The current guns do not have the lightened slides and have the more robust B0-Mar type sights. The current Gold Cup national Match and Gold Cup Trophies handle hardball, hollow points, flat points, reliably, with no durability issues. I often see the National Match/ NM, barrel mentioned by proud owners. Since the '70s, I have owned seven '70 Series Gold Cups, most purchased new, and two '80 Series GCTs purchased new. All had "NM" marked barrels. I had pecisely one '70 Series GC that displayed accuracy superior to that delivered by the several regular production Government Models, with non-NM barrels, I have owned. One of my new '70 Series GCs back in the day was just dismal. Sent it back under warranty. New slide fitted. No improvement. While the '70 series Colts are desireable/collectable now days, they were not all as wonderful as so many true believers believe they were. My latest GCT went back to Colt twice with serious accuracy and other issues. That being said, I still consider the current production Colts to be a good value.....ymmv
Ps, So many of the '70 Gold Cups offered for sale have been monkeyed with, I'd suggest a new gun if you decide to go with the Gold Cup.