front suspension? also rear end help

[allfuel]

I currently have qa1 coilovers in my 1964 Buick sportwagon. Handles nice now. But I'm looking at keeping my coil over shocks. And adding speedtech afx spindals and spc upper and lower arms w helix sway bars.. Anybody on here have good luck w those front parts? Also will be adding vette brakes w Kore 3 brackets. Also does anybody know any year 12 bolt rear end that will bolt in my 65 Buick w same track width? Thanks