Those things are scarce bro... a friend of mine was looking for one awhile back and found none. Anything with that original TC9 motor is becoming rare. People snap them up for cheap and keep them.
Great sub, I had three SW8200's sealed in 3.75 cubes. You might want the newer non-LMS motor (SW8010/8210) because it models the same (similiar specs) but has better efficiency, for use in ported & sealed, doesn't need as big of a box and it's also cheap at $150-$200. TC has even better LMS motors now (1500W RMS), on partsexpress. They model nearly the same - response .5 with roll off at 30ish Hz.