https://www.99bikes.com.au/car-rack-...folding-2-bike
I just bought this. And also found out it has a lifetime warranty.
Weighs...not a lot. Folds up smaller than a shoe box but is still solid. You can take it off the car and store inside if you need to.
Flexible mounting options, It will rest on my spare tyre fine and straps to my tyre arm. I'd say it would work with the rear door and Teraflex tyre carrier fine.
Also you can use it on other cars if you need. unlike the tyre mount ones
It gets good reviews on Amazon, but has scratched a few peoples' cars.
On the jeep, mounted on the spare tyre, it'll be miles away from the vehicle though so should be fine