There's really nothing to it, if you have some of the basic tools handy. I just completed my very first build a couple of days ago and am now just trying to decide what finish I want to apply. I started off by purchasing 5 parts kit at a gunshow last October. That's when I started my research to see what it took to build one, and once I got over my nervousness, went out to Harbor Freight, bought a cheap 12 ton press, a couple punches, a vise, and with the dremel I already had, went to work. The press helps making the removal and repressing much easier, but there are different methods to do the same task. I bought a 4" gear puller, and that is what I used to actually remove the barrel from the trunion. I used the press to help remove the barrel pin, reinstall the barrel, and crush the rivets on the trigger guard assembly.
Once you get over that hump of being not confident enough to do a build, things get easy. I now have 4 more to build.