For that price, if they are in any sort of decent condition, jump on it. If you don't like it, part it out on ebay then use those funds as the starting point for something better.
Given folks are selling just a pair of LS50s on craigslist for $400-500, I'd say you're getting a good deal.
I think you'd have difficulty getting a single good bookshelf for $150, let along 5 speakers and a sub.
Anxious to hear how this turns out.
~Josh