I realized this morning I never thanked you for your help! This is all awesome information and stuff I’ll be looking at doing come springtime.I was planning to make insulation panels out of reflectix. It's basically foil covered bubble wrap. Cut to fit. I'd consider some form of curtain between the front of the cab and the rear, that way you could crack the sunroof or something. Keep in mind that mosquitos are attacted to heat and co2, so if you plan to do that in the summer, you may want to make a screen.
The LC actually has air exhaust flaps built into the rear - that's what the little vents in the back do, so you may consider a low power RV fan that you can stick into the sunroof opening and running it on a second battery
Thanks again!!