I was about to ask the same question, but for an auto. I've got a 700r4 in my '68 and as it is right now, I can't shift into 1,2, or 3 (only D). It'd be $85 for an adapter to use my beat-up stock one or a little more money for an aftermarket shifter. Has anyone installed a Quicksilver or Hurst V-Matic on their console?
http://www.shadowdrop.com