Hi Trevor, and welcome from Alberta. I would suggest taking a very close look for body rot, especially in the truck and the rear boot area, where the top goes when it is down... It seems to be a bit of a problem area in those fury convertibles, take a close look or rot it the rocker panels, Or evidence of bondo and shoddy repairs. Rust might not be an issue in your area, but I have seen several, patched up rusty cars over the years, I suggest holding out for a beautiful example, there seems to be several nice ones still around... Any other advice ever I could give, I think you are already aware of if you have already fixed up a car.
Best hopes for the successful acquisition of a nice fury convertible.
Grant