I found this in a box tonight. It's a Goodmark repro 4 speed boot, 65 66 67 Acadian and Nova with a 4 speed. I must have somehow bought an extra when I did the 4 speed conversion on my Acadian. Anyway, I checked online and the cheapest I can find it is $23 US from Summit Racing.
I would like to get $20 Canadian for it, plus actual costs to mail it.