Hello. I wonder if anyone has a good burn-out kiln for sale, or knows where to find one. I am searching for a small economical burn-out kiln to melt wax out of ceramic shell molds. I'd like something that will fit several (three to five) 2.5-3 foot tall shells at once, something that has a provision for collecting wax and has an after burner, and something that runs on propane (preferably). I'd like to avoid having to build one, so that I don't have to spend too much time away from sculpting.