Karl-
I think you have me confused with tr3driver (aka Randall), which is a compliment to me, but probably not to Randall!
Here is a picture of what I used for a compressor:
For the bottom plate, I doubled up on some thick metal (Simpson's Strongties from Home Depot). Doubled up because I was worried it wasn't stout enough - as built it worked fine. I drilled holes to match up with the studs holding the lower shock mounts.
Also used a short bushing to drop the bottom nut lower so that I could unthread easier - if you can find something like that I recommend it as it makes it easier to release the spring.
Randy