Looking for help doing mini tubs and leaf spring relocation on a 72 dart

Hi,
I am in the Richardson/Dallas area
Looking for someone to who can help with this project and has some experience. I want to be hands on as much as possible if that is ok..

I have an 8 3/4 already installed, it has two sets of perches. I need to do the bracket relocation and widen the tubs a little.

I am not sure how much time this really involves.
Any help would be appreciated.