3rd gen and e body interchangeability.

[CFMopar]

https://tamrazs.com/products/70-4-e-body-front-inner-fender-skirt-wheel-well-apron-shock-tower-frame-rail-rh?_pos=13&_sid=a05df3748&_ss=r

Does anyone know if all these pieces interchange on a 71 b body? I know the rails and inner fenders do.  So I'm assuming rest do. 

If it does, the whole assembly would same me time and money. 

[Nacho-RT74]

It could with 71/72 B, definitelly not with 73/74