WiseWood
I also think that $370 is to much for a Knight DISC Elite SS Composite 45 or 50.
On the other hand there is a very limited supply of Elites and even more limited in 45 cal. Since Knight has suspended ML construction - there might not be anymore. In fact there probably will not be, if they get Knight back up it will probably produce the new Ultimate Slam.
I believe if you look around you will easily find one on the $300 range and even the $2/250...
http://www.auctionarms.com/search/di...temnum=9097054
http://www.auctionarms.com/search/auctions.aspx
http://www.gunbroker.com/Auction/SearchResults.asp
The newer Knight DISC series is one of the best built and strongest guns you will find. If a 50 cal would work for you you will find them for less.