Greg--
I understand your concern, and admire the restraint. I'd be dying to drive it if I were the one picking it up, though!
If you'd like another option to consider, here's what I did when I picked mine up 1 month & 3 days ago (time flies when you're having fun!):
Have the person/organization you're purchasing from take the car to whichever dealership or service facility he/she normally goes to (which isn't gonna be much @ 1200 miles, I guess!) for a safety check of fluid levels, etc. If anything needs to be done, you can have them do it before you get there, so that the Vette will be ready for you to drive it home.
I flew from B'ham, AL to Orlando, FL for only $115 on Southwest. Then I drove 150 miles down to West Palm Beach and another 700 back up to B'ham. Had no problems doing it this way, and got a great chance to get familiar with the feel of my car while doing a lot of "easy" driving on the highway.
Anyway, sorry this is yet another post not answering your original question, but, hey-- I've never trailered a Vette to know!
Congrats on the purchase and good luck!!!
BTW, don't you want to drive it before sealing the deal anyway?