I think Derr builds on your wallet LOL. Im sure could mill up a complete gun if it was a viable option . Cost prohibitive for these small guys to cut frames from solid stock.
Any how im sure if you showed up to Derr with out a frame and slide and said from the ground up build he would meet the demand.
When I said from scratch, I didn't mean build the actual frame. I doubt Lou is building his frame. I would bet they are outsources with his serial #s. There are very few companies doing the forging or castings of frames.
But my point was this. Both are very capable smiths. But I have yet to see a gun posted by Lou that need any work to it to make it perfect.
I have seen gun posted by Greg that still need a lot of time spent on detail work and I have seen some that don't. I believe the difference is that Lou build a gun to his level of perfection, this is the gun at this price. Greg build to what the owner wants and is willing to pay for. That final detail work is time consuming and expensive and most don't either notice or don't want to pay for that additional expense. I'm sure the gun's Greg submitted to the guild were perfection as that is the only way to get in.
When I look at a picture of a 1911 and the slide and frame don't match up. I don't know if that is because the barrel isn't fitted correctly or the owner/gunsmith didn't want the work done. Is it a sign of a bigger problem or not...no way to know without stripping the gun....so it gives me pause when I see it