Father-Son 1974 Duster Project

Are you replacing the brake hoses? - highly recommend do that. I think you said you have new tubes?
As for the suspension..I kinda enjoyed doing mine. LOL But, if your info is accurate that could be a REALLY good thing. How old would those parts be? Very possible they are US made Moog. Last few years seems like all going to China, Mexico.. including MOOG. My kit came with McQuay Norris. Some showed USA. From what I read, probably not as good as OLD Moog, but not seeing anything bad about them.