How much is my SN89 worth?

[5lmustang]

First off it is too bad I did not find this site along time ago.

I have owned a Paxton SN89 supercharger for the past 6 years or so but I have only used it once for a 6 month period. (I was a poor student)

Since I never use it I am thinking of selling it and I was wondering what it was worth?

It seems to have a 3 3/4" compressor pulley and a 6" crank pulley. It comes with everything to install on an 89-93 Mustang 5L. When it was used last it had a very small, slightly damp spot below the compressor pulley. It was working just fine when I had it on my car last.

Got any ideas of what it is worth?
Do you think having it sit for so long has caused any damage? (it always had oil in it)

[speedytang]

Being that it is a SN-89 and the internals probably need update which cost around $700 your better off if you still have the car to use it or be ready to except offers in the $500 or less area. Post in the Classifieds and take offers and go that direction to see if it is worth parting with. Just my .02 worth.