For what its worth I have a neighbor in the hydrographics business. Has all of the equipment in the back of his garage, really cool setup with a huge tub wash area and paint booth. I haven't had anything done personally but watched the process in awe a few times. I've seen some excellent work on rims, deer/boar skulls, guns, and misc parts. I do have a shelf of stuff ready for him to dip just need to find the time to get over there!

When I get the chance I'll post pictures of his setup.