Oh, sorry. I thought you were listing things you have.I dont have nothing on hand the stuff i linked are the one wanted to buy.
It's up to you... Either go to Home Depot and get insulation panels (the thick stuff they put on house frames) to wrap your tank in, and try it out; or just spend the $on a generator now. As others have said, the genny cannot be run indoors so you'll have to run a power cord through a window or something.