I replaced my 95 k spring without a compressor. Just pushed down against the floor onto a pound coin with a bit of flat rubber to protect the blueing.
I've now progressed to the sawn off leg of a microphone stand ,which has a nice rubber foot on the end, I just hold it in a vice and push down against it.

There was a strip down of a 95 in one of the mags august 2005 possibly?

Andrew.