However, a few things I would suggest to give you a better perspective is: 1) Talk to property management companies in the area to see if they operate in the area and/or have comments on tenants in the area, 2) Speak to a few banks to understand how they would lend on this property, 3) Scan Zillow/craigslist and other listing sites to understand the rental market for listings...

Sites like Craigslist, Facebook Marketplace, and Roommates.com can give you a good idea.

I may try canceling and trying a different site.

Driving traffic to your direct booking site, if you have one, can definitely be a challenge but I personally believe it's becoming more important all the time, particularly for STR. 

When you are on sites that say for rent, lease to own.

Get the go-to guide for thorough interviewsSeeyou around the site!!!

Check past home values and rental rates using sites like Zillow and Realtor.com or local house market reports.

I enjoy contributing on this site and don't use it for personal promotion.  

Development costs will often be the biggest hurdle, meaning: sell the land you have and buy an existing park, campground, rv park and "upgrade"/ convert the sites to tiny home compatible. - and you'd be ahead.

Cities are required to select sites for new housing developments to address the housing shortage, but when cities are located on peninsulas with a finite amount of land there is a limited number of feasible lots to build on.