Three spring relocation questions:

1. Im sure it dose but to a very small degree. You are moving the pivot inward creating a larger fulcrum so yeah i would think a little bit more roll is introduced.

2. Yes but not as much as doing both.

3. ( i don't know?) I dont run a rear or a front sway bar beacuse i dont care about corners.
I want to go as fast as possible in a straight line, thats why i run a large rear tire....

Lots of new cars run an 8 inch wheel and corner well. New RS Camaro, new non GT mustang...

What do you want to beat?

A 1965 Corvette? Or a 2020 ZL1?