You're not going to like this but I'll give you my honest take...
Most jurisdictions will require a special use permit for this type of thing which can take several months. You'll have to write a contract on a piece of land contingent on this approval. The process invovles notifying neighbors who will be able to voice their opinions at your approval hearing. More often than not, unless you're buying a large and private piece of land, residents of these areas are the private and quiet type who don't want a bunch of rental cabins next door. Your best bet would be to find an existing campground that already has the approved zoning, but they're hard to come by.
As is probably obvious by now, costs of supplies are through the roof, some are impossible to get, and contractor availablity/dependability is doo doo. Most prefab companies I've spoken with are 10-12 months out for delivery at the earliest.
Not to be a negative nancy, that's just the reality of these times. My GC working on one of our projects is also working on a "glampground" like you described and has spent months battling the county for approval.
Do you have the capital to carry a project 14-18 months before making a single dollar? Or is it better to pivot and start growing your portfilo by buying one existing cabin at a time and enjoy the cash flow now? I always try to steer my clients towards buying an existing structure instead of building.
I'd also recommend chatting with a CPA if you haven't already to discuss the benefits of owning real estate, and whether doing something like this would truly allow you to maximize on these benefits.
Regardless, I wish you the best! We're very active in the Shenandoah Valley VA market and it's a fantastic place to invest. Keep your eyes open and make a move when one presents itself!