1965 barracuda seat upholstery kit install difficulty

Haven't looked in awhile, but Legendary has how-to videos on their site.
Classic most likely gets their stuff from Legendary anyway. Look and wait for sales at 20-30% off. Legendary is (was) always at major shows with show special discounts. They are sold on a per order basis, not stocked, so you have to be patient for your order to be made. There also is a shipping charge so allow for that.