phisherman

Thank you!

A friend of mine is giving me the opportunity to purchase a pair of Klipsch KG 4.2 floor speakers. My 2 questions are - 1. What is a fair price? (they are in great condition) 2. Being a 2 channel speaker, can this pair still be used in a 6.1+ surround system and if so, would they still sound good? I'm audio illeterate as you can see and would like to integrate these speakers into that kind of system. Any input anyone could give me is most appreciated.