A 1974 Duster - My 2nd one, 41 years later!

My rear brake backing plate is supposed to be done, the powder coater just called. So I can get the passenger side done and then give him the other plate. I took one apart at a time so I can have a visual to refer to when putting it back together. I know stupid, but safe.

I am fighting with "Do I mini tub and spring re-locate" or do skip it??? I already have my 15x8 wheels and tires...but 15x10's would look awesome. Do it? or Skip it, and keep going?