Neighborhood data has a variety of homes each of their own uniqueness basing sales price on "neighborhood data" and would result in a significantly lower average and cannot be used to calculate home price. This is probably why Zillow's estimate is so low.
Best Comp On Market
5019 Whitefish Stage, Whitefish, MT 59937 MLS #21808948
There have be no closed listings in the area in your price range for the last year.
Cancelled and expired together account for 34 listings not sold out of 56 total which is 60% of the market. In order to have a sucessful sale a strong marketing campaign will be needed.
Marketing and Pricing
Lead capture and followup for feedback and timelines will be essential to selling quickly and for the highest dollar amount. In order to find the right buyer for this unique property I would recommend listing in order to elevate this listing to the highest pool of buyers on the market and to leverage agent systems of technology based advertising and lead capture.