Plymouth duster rear suspension questions

All righty well seems the general consensus is that I goofed in ordering this relocation kit. Well it will soon be up for sale lol. Now regarding the springs after making this post seems that the oval track springs are not the best option. I mean they look like a great option and at that price point is a killer deal. However they are on back order for a while so I canceled the order.

That leaves me still needing a relocation kit and a set of springs lol.

I looked into both the Hotchkiss springs and the Dr diff relocation kit but it seems like there's some overlap in the parts namely the front hanger? I wouldn't want to spend money on these kids if I only need one certain aspect of it. I'm still looking to have either 120 or 130 stiff springs.

Any other recommendations on parts or part numbers that would work in junction as a set that I could just slap into my cart and check out. Please don't take this as I'm too lazy to do shopping it's more so I know some of you have traversed this line more proficiently than I have lol. I I would want something that sits flat with the adjustability of the PST torsion bars and is still compatible with the PST Bilstein shocks.

Parts for reference.
Doctor diffs relocation kit

Https://www.doctordiff.com/a-body-offset-spring-hanger-shackle-kit.html

Hotchkiss springs

HOTCHKIS SPORT SUSPENSION SYSTEMS, PARTS, AND COMPLETE BOLT-IN PACKAGES » Blog Archive 1967-1976 Dodge A-Body Geometry Corrected Leaf Springs