My last, (shooting, but still uncompleted), is a Colt slide on a Caspian frame. I highly recommend Caspian frames!
Shoots well, in spite of, (or perhaps because of ?), the no name generic barrel I found in the back of my spare parts box.
Mostly Ed Brown small parts.
I notice two distinct groups here. Those who want a cosmetically high quality pistol, and those who want all the nice custom parts. Some people want both! I put mine together to shoot it, so I am not concerned that the slide I used already had a decade and a half of wear.
It has been 100% with 230 grain FMJ, so that is what I shoot. If you wanted to shoot JHP or SWC, it would need a little work on the ramp. Someday, it will get it. Then, I will be tempted to do another one, possibly in .38 Super this time. Variety is the spice of life.