No BTDT, and I am pretty sure there is nothing that specific where we live. That said, it sounds great! If you have names of people out there who do this, I would ask them if they have any parent references, and then call the parents and ask what they though was helpful, what was not helpful, as well as your other questions.
A private practice OT who works with kids with executive functioning issues might be a good person to ask for names if you don't have any (at least here that's the only person who has been helpful as far as finding non-advertised resources for us that I didn't know about yet).
lucky single mom to 20 yr old dd and 17 yr old ds through 2 very different adoption routes