Bob Crites, BEC on the forum makes or rebuilds crossovers. Here is a link to his website. http://www.critesspeakers.com/prices_-_new_crossovers.html

You could get a replacement plate amp from Parts Express. http://www.parts-express.com/wizards/searchResults.cfm?srchExt=CAT&srchCat=505

I would look for a used Sub-12. Craigslist might be a good place to start.

Email did not work for me either. you have a Pm in your inbox.

This would make a good center! He has is listed as a subwoofer. Don't htink he knows what he has. http://tallahassee.craigslist.org/ele/1462614074.html No affiliation just saw this while browsing.

You got a good deal even if you just count the speakers you got for that price. The sub and receiver are a bonus. Klipsch speakers are super efficient, so they don't need a lot of power to sound great, so your receiver should be enough. Welcome to the madness!

What TV do you currently have?

Definitely worth it. Gaining a matching center and adding a sub. Surely you could sell your old setup to help recoup the costs of the new one.

You could get them and add bucking magnets to the drivers to make them magnetically shielded.

They do turn up on ebay fairly often. I don't see any at the moment. I'm sure there is a forum member with a spare for sale.