Bag 'o gun showed up today from Sarco. Numbers matching Argentine with a new barrel. Everything minus the upper and a flash hider.
Now I just need to decide if I want to:
Order a Coonan upper with a custom s/n to match everything else
...or try to see if I can track down the original Argie upper (there's a list on falfiles)
I may build on a Coonan, and buy a cheaper non-numbers matching kit. If I find the original upper, I'll reunite it, then use the Coonan to build a SBR with the cheaper kit. If I don't find the original Argie, buy another receiver and SBR the cheaper kit.
With my wedding coming up in April, it might be a month or two before I order the upper from Coonan, if I can wait that long. Going to see if I can pick up any tools and a .308 go/no-go gauge at the 1500 next week.
Then try to track down some US made parts to make it 922r compliant.