When I go to Burgundy, which is pretty small and easy to drive around, I have traditionally gone around on my own. But, when I go to Bordeaux, I get a tour guide to drive me around and make appointments for me, with some input by me as to places or types of places I want to visit.
The OP seems like he does not know the Loire very well and seems to be flailing around a lot. My sense is that what he really needs is a local expert to drive him around, take him to excellent wineries and teach him about the region. Someone who will listen to all of his questions and put together an itinerary that will give him a comprehensive overview of the region.
I have such a person in Bordeaux in the name of Henri Challeau. A couple of days in Bordeaux (am I turning into Alfert and Julian?) - WINE TALK - WineBerserkers
My trip to Bordeaux - WINE TALK - WineBerserkers
Can anyone recommend for the Loirie someone like Henri? My sense is that someone like him is EXACTLY what Paul needs to make this the type of trip he is looking for.