I bought one on Ebay several years ago, it works well on the gummiest of estate pipes.I remember that the proceeds went to a animal care group.
This is the same group : .The Retort is owned and manufactured by the Sanctuary for Unwanted and Neglected Animal rescue S.U.N.A.
I looked on Ebay and found this one : http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270664473502
I think jship079 is talking about the retort kit being sold on eBay. Seems like a decent deal for $25, especially if you can't find all the components in your area.
-Jason