I was going to do the springs this afternoon on my sisters 91 190E, but my regular spring compressor that ive used on mac strut setups wont work because these coils are too close for the clamp to fit on. Do I need to get an internal compressor for these? What about the rears..there is no hole below the spring to access the inside if I were to use an internal style compressor. Any advice would be great guys.. im used to working on my audi's and they are quite a bit different.