I found something that worked at Radio Shack. They had a long bit with T-10 and T-15 at opposite end. I broke off T-10 tip and it fits a standard 1/4" driver. Combined length was just long enough for the screws in the top!  That was about 20 years ago, no idea if they still have it or not.  The main part measured about 6 inches long without the tip end.