Build your own powder coating oven by using either a new or used electronic smoker. Slight modifications keep it at temp and also gets to 400 degrees F in less than 12 minutes. Uses a small amount of pink insulation and parts already available if you purchase a new smoker. Use craigslist or Facebook marketplace to get one even cheaper but I decided to just buy a new on off Amazon for $158. The only other parts needed are either screws or pop rivets, it's your choice.