Hey I hope some of this will help. I have a small anodizing shop myself. I bought alot of my set up from places local to me. Plastic tanks you can get at Lowes, Home Depot, Walmart etc. Look for the ones with the triangle on the bottom with 5 and PP in it. Aluminum hanging wire can be found at again Lowes, Home Depot and Radio Shack. As for the cathode it's just a lead plate, I did get mine from Caswell's. I picked up my bucket of acid from NAPA for $13.00. All the other "little" odds and ends just shop around. Now for the dye use one made for the job. Don't use the stuff from the store for clothes. Ron Newman now sells dye and low temp sealer. Really the only thing you need to buy online from anyone would be the dyes, sealer( steaming works in place of it), De-Smut/De-Ox, and maybe stripper if you plan to work with parts that may already be anodized. For the love of god forget you even heard of the name Hobbyplating.com. This guy is locked up as I understand it now for ripping off tons of people. They have taken people for, in some cases tens of thousands of dollars. I can't count the number of people I have heard that have been taken by them!
If you would like check out my web site with the parts that I have anodized in my shop.
Later,
Tim
www.hypercoloranodizing.com