Welcome to the forum. Please note that I removed your duplicate posts, as cross-posting isn't permitted. It's hard to put a value on pistols without knowing the approximate year of production or being abe to see decent pics. The Gold Cup has been in continuous production for decades but has also undergone numerous small changes. Same with the Defender, to a lesser degree. Without more info I can only hazard a rough guess of about $700 for each.
Avoid the temptation to replace everything on your brand-new 1911 just to make it "better". Know what you're changing out and why. You may spend a lot of money fixing things that weren't broken to begin with. Shoot at least 500 rounds through it first, then decide what you don't like and want to improve. Regarding vintage 1911s, pre-1946 pistols are highly collectible in original, unaltered condition and should NEVER be refinished or modified as it completely ruins their monetary value.