Eh, I was hoping there was a more conventional seperate balljoint and a-arm design out there so I wouldn't have to replace the whole arm more than once.
I dunno man, I can't get the arm down far enough with the knuckle and cv-joint still attached to even get the coil spring loose, let alone jam a 1.5" coil spacer in above it. That "tower" that the bump stop sits on is half way down the coil, I think I need to do like the others have said and almost drop the a-arm vertically down to get that kinda clearance. I don't think the cv-joint would like that much deflection.
Moot point for now, I've got it almost back together, just looking up some torque specs now.