hi i've just bought a pretty tidy p100 but want to do something smart with it how low can you go while still using the leafs and what parts are needed to drop it also is it possible to get an engineers to flatten the springs at all? also what is the best way to go about lowering the front end looking to lose alot of height if possible also what is the easiest way to go abouts converting to 4 stud wheels cheers sean.