Try Firm Feel for a K frame reinforcement kit. I reinforced the LCA rather than QA1.
I have fitted Hotchkis TVS with adj Hotchkis shocks. Poly everything. 1.03 torsion bars but maybe you want even stiffer with a RB440. 1.12 maybe....
Great stuff - I figured I can probably save a little more going with the TVS kit vs individualized parts. Also funny stuff but QA1 is a brand as well as a part of the K-member. How many Torsion bars are needed and where would you recommend looking for these?