One of our local SSP bretheren is selling a ex-WSP 83 LTD as well:
http://seattle.craigslist.org/tac/car/431330823.html
I believe there were around 400 that were ordered for the WSP in 83/84, but very few remain. Most were bought for their drivetrain and junked. Pretty hard car to find if you like the baby LTD platform.
I like the burgandy color on the 84 mentioned above. Nice!