I just helped my dad sell his 65 convert - i fielded the email questions and talked on the phone to guys all over the U.S. who were interested. I've been in there shoes looking for a car, was told by a seller that the car was "a driver in great condition" only to go and find a parts car or worse. So as a seller, I was brutally honest with guys who were seriously interested in the car - told them everything I possibly could. With the eventual buyer, I actually walked around the car while on the phone with him and told him of every defect that I would consider if I were a buyer. He eventually flew out to see (and buy) the car, and when he saw it, he said from our description he expected a car in worse condition - I couldn't have been happier. It may not be the best way to maximize the sale price, but when it comes to selling mustangs, I don't think that should be the goal. Dad asked for a fair price, not retail, not a bargain, and when the guy saw the car he was happy to pay for it. If your seller is willing to do that for you - and that's the tough part - you can trust what you're getting.
I think a video is another great idea - if its a good one.
Lots of good suggestions in these posts.
Good luck.
1967 Fastback, 289, C-code, AT, PS,
dark moss green, parchment interior,
GT rear valance and tips