Best of luck, we can use all the parks we can get. As far as using the park, price is not as much of an issue as is the quality and quantity of the trails. For me tight trails and rock crawling would get my attention. Port Huron would be closer than anything else, but a more centrally located park in southern Mi might pull in more customers.
Here is Fourwheeler's "Off-Road Park 101 Essential Tips For Starting Your Own ORV Park"
Originally Posted by FOURWHEELER
Park owners tell us that insurance is their biggest expense and there are only a couple of companies willing to underwrite ORV parks. If you can qualify for insurance, we're told that annual premiums for a full-time park range from $20,000 to more than $50,000. Figuring a $20,000 annual premium and a $15 per-vehicle day rate, this means that it'll take well over 1,300 paying customers to meet your premium.