A lot of the Speedway offerings and now much of the Heidts pieces are imported. Yes, Heidts that is now owned by a large conglomerate is importing pieces to include in their "US Produced" kits. I'd check out Total Cost Involved kits. Still all made in the USA and very competitive on price. If you want to piece together a kit on your own check this site FAB Quest
They have a neat separate hub and 11" rotor kit for the M-II that uses the large GM 7" D-52 caliper. Quite a few crossmember options also. This is where I purchased my dads tube arms, QA-1 coil overs and front brake kit as well as a universal rear triangulated 4 link. We are very satisfied with the quality and service so far.