Got my spot picked out for Dec 18th-20th

Taking my son out for a couple nights to a KOA.. Full hookups so no worries there.. and an indoor pool/hot tub/mini golf/go karts/ECT.. ok its really just a spot to park my HTT and enjoy some stuff with my son.. lol

Just thought I would ask if there are any other "things" I should be aware of as I haven't taken the HTT out in the cold, ever.. I don't have the PUGS for the canvas so its going to be cold, I will be bringing two plug in electric heaters and electric blankets for sleeping.. Then all the usual stuff, I plan to winterize when I get back from this trip as my HTT has a new parking spot next to the house (figured if I am going to move it, I may as well use it while its hooked up!!)..

Thanks..