That's a bit of a difficult number to think about. I did a check, and there are 2017 Fifth wheel units out now. There are some 2015 Bayhill units in Edmonton.
I would do comparisons with prices from all over, including the USA (converted to Can$) and then try your offer.
You are buying something that has sat on a lot for some time, been walked through a lot. Likely nobody has checked it for it's roof or windows. How useful is warranty if you drag it 500 miles back to Prince George?
Be wary my friend. Ask yourself why nobody wants it, and how much could you sell it for if you buy it from the dealer.
Mike
2012 Winnebago Impulse Silver 26QP
2005 16.6 Double Eagle
2018 Jeep Wrangler JK
previously Snowbird Campers,
Triple E Motorhome and Fifth Wheel