Don't wish to start a debate or offend anyone but in my own experience here in the midwest I've hauled that style of 4 speed around for a number of years to swap meets of all sizes and types. Typically the most I can get out of one in very nice internal shape is $200.
I agree a BT 64/65 trans is basically on worth what a gear set is worth as a core unit. I have sold a few over the years and unless you find that guy wanting to restore and use a Ball and trunnion 4 speed the value is way down. Most I have sold will be in the 200-250 range with some maybe bringing 300 max in my opinion and past experience from units having nice gear set in them. Regular 66-up 23 splines become more valuable as the years go up with 70-71 units being more desirable and might be in the range given of 600-800, but again I have never personally sold any 23 spline for that amount, and I have probably sold 30 or more over the years.
Matt
