Of those 9, only 4 need to be built. One of those 4 is partially done, but I think I might have overtorqued it slightly when I installed the barrel. So I want to have a professional look at it.
I will probably just have the others built too since my receiver vise and wrench is in Florida with my uncle. Once I have my rental house paid off in a couple months, I should have some extra cash to spend on it.