Plymouth duster rear suspension questions

All righty well seems the general consensus is that I goofed in ordering this relocation kit.

Been there and done that. I’ve got a pile of parts I bought with the intention of using but went a different direction.
Good buy on the Doctor Diff kit. To my knowledge the Hotchkis hangers are just standard location and not relocating type hangers.
Others can hopefully chime in about leaf spring options because I am interested too. I was looking at Eaton’s website for D100 leaf springs and they had a good database of cars and can make just about anything.
Duster Springs & Suspension Upgrades - EATON Detroit Spring