Chevelle Seat Track Extenders...?

[4wayair]

I've got an interested buyer in my 66 Chevelle but at 6' 11" he's not sure how well he will fit. I've heard of seat track extenders offering an additional 2 inches for F Body cars wasn't sure about A Body or if anyone knows of anyone who customizes seat mounts / brackets / seats frames etc... to accomodate really tall people. I'm hoping I can offer something up otherwise he may just have to search for a 66 Convertible.

Thanks in advance.