How long will it take you to develop a custom tour for me?

It depends of course on the complexity of the request.  The more details that have to be arranged or sourced the more time it will take to plan a tour that meets your needs and expectations.  Strong Interpretation will endeavor to expedite the process as fast as possible and will provide regular updates on the progress of planning your experience as  the tour comes together.  In short, the more lead time you can give for a custom tour, the better it will be for making this a memorable experience for you.