I bought my gun and power supply from Harbor Freight, looks like the same gun. I buy my powder through Eastwood and it really depends on which powder you get and the amount. The more you get the less the cost. Here is the web page for the reflective chrome;
http://www.eastwood.com/hotcoat-powd...ve-chrome.html
I did my oil pan and valve covers in an ordinary oven before I built my own oven. Remember this is an investment that will be a little expensive at first but then you have all the equipment and it just gets cheaper as you coat more items.
