It took me a very long time to sell my take-off McCauley prop from my '77 J for half of what you're asking. It had a lot more time on it, but it just needed to find someone with a prop strike, and they don't happen every week I'm afraid.
You probably wouldn't get the upgrade crowd with the old-style prop... I'd rather spend a few thousand more to get the scimitar personally, but I have a long-term ownership horizon. The price is high enough that many folks with the ECI hub won't spend that much to make that nuisance go away IMO, but a great price for someone repairing a plane or in need of overhaul.
If there is a better way to market to Canadians, you should consider that since their regs require overhauls on calendar time or hours, and they *must* do something...either replace or overhaul. You might find a buyer up there in need with out a prop strike situation.