There are only fifteen potential clients and not all of them are expected to book a time. I have about 5 hours to shoot these. I have all the other details worked out.

You are very intuitive. What you are describing is something that you have been doing for awhile but has evolved. You may have heard of it. A closely related field called Personal Brand Photography. In this style of photography you try to capture a small business owner and how they relate to their product or service. It’s kind of business/lifestyle portraiture that goes beyond a head shot. Just google the term if you need to in order to get a more exact description. Very few people are doing it and it’s in high demand. You do a consultation like you said. It works well for bloggers, lawyers and doctors. Any entrepreneur. The pictures are used for social media content or website like you said but it goes beyond a simple head shot and involves a full portrait session and may even include products and the subject interacting with the products.

It’s done on location outside the home or inside or both depending on the product, personality of the subject or the weather.

My research has indicated that, depending on the area and the photographer, these sessions go for $800-$1000, or as much as $5000 and repeat every quarter or so as needed in order to bring fresh content to the website or blog.

A Google search reveals that the world's cheapest country to buy cameras is...United States of America. That's why few Customs agents bother with camera equipment carried by returning travelers.

This was not always so. In the Sixties and Seventies, Japan was by far the best place for Japanese cameras, but Hong Kong was the cheapest for cameras and lenses in general. When I bought cameras in either place, I was given a form to give to local Customs on exiting the country, which saved me the expense of VAT.