What your asking is an exercise in purely adulterated 1911, mental masturbation complete with Astro Glide. Your just asking to be bent and greased heavily..... Look and listen up some. You can take a Colt 1911 new out of the box and have a perfectly dependable firearm for life.
That said. Misunderstand what your 1911 is meant to feed and you can easily run into feed ability issues.
Become obsessed with feed ability and machine tool reliability and prepare your self to spend 3k easily.
Spend some time reading, listening to rational owners of 1911s and you will find you can achieve reliability in almost any cookie cutter, name brand 1911 for the price of.... and maybe an additional cash outlay of a few hundred dollars and have a 1911 that is the definition of reliability.
You can have just as much reliability in a Rock Island with a few part mods as you can an all out full custom job by one of the pre-madonna builders.
Then again, I don't know shit. I'm just some internet dude who professes to punching one too many cows in a days work.