This type of boutique Park is popular in the Okanagen Valley of central B.C. One of our favorite parks is this style in Kelowna and we visit every year for at least a month.
The government allows the Orchards, Vineyards & small farms the right to develop these small parks. However, it ain't cheap building a road, servicing sites with 50A power, sewer, water, restrooms, laundry, etc., etc. and trying to recover your capital over a short summer season.
You will not get rich nor will you be able to give-up your day job. The motivation for these parks was to help the small farmer (apples, grapes or chickens) diversify their farm income. Kinda a B&B for the gentleman farmer.....but lots of work for limited financial gain. Sometimes I think Leslie makes more selling us farm eggs than she does renting us a site.
If I was on your shoes....I'd buy a plane ticket to Vancouver with a connection to Kelowna....rent a car & go visit a number of these Parks. I'm sure if you contacted them before hand and explained your situation...many of them would give you a world of insight into what you are proposing & the lifestyle you would be entering.
Good luck... We'd come & visit!
Jack & Maggie
04-Rexhall Roseair (37)
Cummins ISC / Spartan