Don't know about the starter but dump the factory controls for a shift controller from RADesignsproducts.com. Rory makes some cool shiat. I have his controller in my truck.
The TVS cable works backwards. The looser the cable, the higher it revs till it upshifts. Tight cable makes for low speed upshifts.
Yes, the starter is the same (Swapped my BA 10/5 for an AW4) CPS may be different.
I don't think you can remove it totally, but you can clamp it in one position, and adjust it until you like the shift timing.
Yep. What he said. It controls upshifting too.