http://www.proheatinc.com/
http://www.nphheaters.com/products/ceramic.htm
here is a couple links, you will need to design it yourself,
1500 to 2500 watts, get the heat band, shroud, and insultion.
If you go with NP they were the best price. Ask for James, remind him of mine and that will get you in the right direction, you will need to figure out what type of plug end you will need, it also needs a 25 amp relay
Also get the shroud 1/4" wider then the heat band, they made mine the same size.
Also ceramic is more money but I guess a better product.