Installing coil springs & Varishocks with ATS spindle?

[68cutlass]

Does anyone here have experience with this problem? I'm installing ATS spindles/Eibach springs/Varishocks on an A-body frame that is going to go under my Cutlass. The shock body is too thick to fit through the opening in my LCA, so I have to install the coil spring with the shock already inside. Now I can't use my internal coil spring compressor. I have external spring compressors, but even after compressing the spring as much as possible and cutting all of the excess length of the threaded bolts off, they still hit the frame and I can't get the ball joints close enough to attach to the spindle. Since I'm working on just the frame, no engine, body, etc., I don't have enough weight pushing down to compress the spring by jacking up the LCA. Has anyone else here been in this same situation? Any advice? Thanks.
-Mark