Just some random thoughts. I'm one of those guys that will pay more for quality, ESPECIALLY on a "high end" item like a nice leather holster. I agree that the quality of leather used in Desantis and Galco have dropped a lot in the last decade. I had a circa 2000 Desantis Speed Scabbard for a P228 that lasted through six years of daily carry in hot/humid environments and three extended deployments to combat zones. It didn't look pretty at the end of that, but it still held the pistol just where I wanted and gave a near perfect combination of retention and draw speed. More recent production examples, unfortunately, have been so shoddy that I neither buy them nor recommend them anymore. Likewise GALCO - their one size fits none approach to a lot of their holsters just turns me off anyway.
I think your direct competition would be the Mitch Rosen Express line, and you're pricing looks on target there.
I wouldn't start with the 1911, personally, rather the Glock. I think you need to start with something that's going to sell in some volume, and, frankly, Glock is probably a better starting point for that.
I like the idea of an Amazon start, but, I buy everything off Amazon...