That sounds like the only kind of tour I'd ever be willing to undertake. I am an off the beaten trail kinda guy, and just can't mill about with the herd.

Kudos on what I believe is a superb business idea! I hope you can manage the various and overwhelming bits and pieces of your plan, without faltering. If I can be of any assistance, I'd be happy to oblige if I am able.

Edit: a thought: you offer 'at your own pace', which is a great boon to folks like me, prepared to change the itinerary when faced with a particular delight they want to take more time for. This can create cancellation fees for the tour operator, which you will need to ensure you don't have to absorb, or to have sufficient overage to absorb if it arises.

I'd feel it important to have a fee statement for such itinerary changes that might impact your bottom line that your customers would have to sign off on before beginning their travel.