I went from Bilstein 5160s to the Dobinson IMS - MAJOR upgrade. I had also moved from 285/70/17 to 315/70/17 and it was feeling downright unstable on the freeway to me. The Dobinsons are a night and day improvement.
totally endorse supporting local US made
not sure you can put the politics of the host country on the business based there... slippery slope and some may not agree with moral compass of many US policies right now.
what made you decide to replace all 4 up front - I understand Perry parts recommends to start with 2 but honestly I don't like that idea. Toyota put 4 impact points for a reason and it seems bad to have an uneven load on the LCA if you do bottom out