As in the title, I've recently bought a Rock Island Armory 1911 in .45 ACP. I enjoy "building" my own guns, and want to start working on this one, as I can afford to, but is there a method to the madness I should follow? I mean, are there certain parts I need to acquire and install before others? An obvious example would be don't refinish then decide I want to add checkering, etc. Also, what components NEED to be installed/fitted by a 'smith? I would think that sights are an obvious answer, but what about the others? Eventually I may have it all gone over, fit/polished, etc, but I'm just talking about immediate future. Thanks in advance guys, all input is appreciated.