I am doing something like this for just this winter since I really have no time to bury it this year. One thing I might add/suggest that I plan to do is this. Most people have an outside outlet. Those outside outlets should be GFI. I am going to hard wire mine to the outside GFI outlet instead of plugging it in. I will run that to an externally mounted electrical box on the coup that will supply the power to everything inside. Next year when I am ready to bury it that is all I will have to do is bury it.....everything else will be done and in place.