Tyrone,sure can to all of the above
A couple of things to watch for.
1. Adding the wrong thickness leafs can result in not being able to replace lower
control arm bolt,check your measurments.
2. dont get too carried away because the lower you go with the springs,the further
you change your front roll centres,this can be a real hassle.Try and stay with just cutting down the 50mm rubber blocks and
or cold bending the end of the bottom leaf.
Cheers Bert