Hustlebird is right on. That is the plan. End cap at the top elbow with a hole and liquid tight cord grip. Everything would be liquid tight and not have to worry about using ZINK materials or JB weld melting away into my wort. Plus the bling factor AND it will be 30$-40$ cheaper than the keg kits version.
In the end it should be a very easy build. I need to drill one hole in the end cap, run the cord and attach the three wires, clamp it up. DONE!!!