I have a 20 foot Continental Cargo race trailer that I have used to pull my Cobra although I mostly use it to pull my Legends race car.
The Cobra fits with plenty of room for extras.
My trailer has A/C & Heat, 30amp Electrical, roof vent, spare tire box in the floor w/ spare tire, and 2 sliding side windows. It has beams every 16" on the floor & sides. The side window keep it light and airy with the doors closed up. The trailer has smooth rivetless outer walls.
I paid less than $8,000 and picked it up from the factory.
It pulls very easy behind my F150 and my friend's motor home.
I added additional E track on the floor and walls, a refrigerator, microwave, coffee maker, a winch and shelving that can turn into a bed (The trailer can double as a camper - just no toilet or shower, but they have those at the track)
Of course if you don't need all the extras, it would be much less.
Continental has four factories in the US.
If you are interested let me know and I can get you a big discount.
I don't have any pictures with the Cobra in it but here is a picture with my race car in it.
