Good luck with the transport, you will be fine with a deckover. But if you've got hard sides or rails less than 85", I'd be afraid of a wasted trip that ends with you coming home disappointed.
No disrespect, because I'm sure you are kicking yourself now and you don't need to hear it from me...but I'm going to say it anyways. Having some idea about how you were going to get them home probably should have crossed your mind before you got carried away in the auction. Maybe you only intended on buying 1, but ended up with 2...maybe you just said you'd figure it out later if you won....None of my business. Whatever the scenario, now you've got extra money involved, and the stress of it all with a 10 day clock counting down for you to drag your stuff off base.
At least you were able to find a suitable trailer to rent or borrow. Lesson learned.