Years ago I bought Wilson's book on customizing the 1911. It did not have a lot of detail, but enough you could figure it out. I don't think the dvd set was out yet when I built mine. I used a few different books including Jerry Kuhnhaussan's manual, which is a very good book. I think I paid around $480 for my colt at the time, and I wish I would have kept track of the cost of all the parts and tools I purchased to complete the gun. The parts and tools are not cheap, and I bet I had a bundle wrapped up in it when done. Although it is very rewarding to end up with a nice looking and good shooting 1911, when done.
I used to wonder how Wilson could charge $1500-3000 for a custom 1911, but after doing my own I can see why.