1: for setting up the struts i would first find the centerline of the donor car, and measure the distance between the struts. i would then measure the overall width of the car the settup is going in. the 1/2 difference will be the distance from the outer edge of the car to the strut mount centerline. you also want to get the same suspension travel in the new car as the old one had, so you nee to measure from the ground to the top of the strut mount, and set the new mount at that point in the new car. tilting the strut in this case, being the rear suspension, is undesirable. you want the strut and spring to be as vertical as possible. you dont need any castor(set it at 0), and you need very little, if any, negative camber(i would set it at like -1 degree at most) to aid handling. the A-arms should be parallel to the ground in the rear as anti-dive is settup in the front suspension. as for bushings in the rear i would use a monoball bearing, like you would find in nextel cup cars, instead of urethane or rubber bushings. the reason is you want the rear as stable as possible, and oddly the monoball bearings dont add impact harshness like urethane or metal bushings do.