Andy F, I sure wish I had your beautiful garage and you had a doo wacka doo! I too am a fan of the Nash/Richmond 5-speed. I used one for 2-years in my Super Gas Corvette. It left at 10,000 rpm with 1.20 60-ft times and only failed once when 1st gear on the cluster split in half. The transmission is really easy to work on with the split case and they have a good selection of ratios.
Did I say I covet your garage?