You're right those are very usefull tools, and the cost isn't that bad if you're going to be into the pump a couple of times, or you have some buddies to share the cost with.
But if I was going to buy them, I think I'd buy them here (http://www.rexmar.com/page126.html) They are the guys that make them in the first place
Chris
If you plan on owning a jet you need to have the right tools. Buy the whole kit and save yourself the headache.
http://i2.ebayimg.com/01/i/06/01/ac/01_1.JPG
Tool Kit Auction (http://cgi.ebay.com/ebaymotors/Berke...5QQitemZ461139 3947)
or
Buy it now (http://cgi.ebay.com/ebaymotors/Berke...455QQitemZ4607 152112)