Unless he's trying to make back the money from a specific purchase of this tape, it's not "worth" $300. We've seen enough bad pilots to know. Would you want to be the one shelling out hundreds so the world could see, say, "Beat the IRS?" If it was legitimately shopped around in 1984, VHS copies have to be someplace. Maybe they'll never be found, but it's unlikely this edited master (i.e. a shortened or fixed version of a longer whole) is the only copy around.
-Jason