The 1911 is a Wiley Clapp LW commander.
I have several of the matech sights, and I like them, but yeah I bought low on all of them, and I recently bout a Troy flip up rear for $50 on sale, and the rail system isnt a big thrill for me.
These uppers still seem to go over 1k, but it seems like its more of a collectors item than something useful.
It looks like about $550 worth of parts to me... With a $500 cardboard box....