Looking to build a small diy waterjet, so far have an ingersoll 40hp 55k PSI intensifier and some plumbing but looking for a cutting head. Applied science had a youtube video of a pressure washer based unit and he used an accustream cutting head. Unfortunately they no longer post prices on their site.

There are various China based ebay sellers but they do not seem to specify anything on their products (orifice types, threads etc).

Where can I get a complete cutting head (valve, orifice, mixer nozzle), that has known size connections and available replacement parts? Hoping to keep it under 1500USD. Used would also be fine but from a known model/mfg so replacement parts can be found. Thanks.