I know that the Alpicool and BougeRV models are good portable fridges. And these are cheaper than the Tesfridge. After all, you need one for camping, not to survive on an island, haha! Good luck with the purchase.
Confirm with the wheel manufacturer first. Tesla’s higher clamping forces and larger 14mm studs can stress wheels not designed for them. Drilling out the lug holes might weaken the clamping area, especially at the conical seat.