Some members have had good luck with Reman-Inc out of Indianapolis IN. Best bet is to call direct, they aren't great on answering emails in my experience.
http://www.remaninc.com/There is also a company out of Wisconsin of which the name escapes me. I've spoken with them and then can do masters and some hydro-vacs.
I have one other as well, but the paperwork I have for them is out in the barn. Ill grab it in the morning and post back with that info for you.
