Dear StJames,
You are correct in your post above. It sounds like you've done some good research.
In the many posts after it seems like from what others have said they do give you more info then first implied. Your questions about building specifics seem reasonable.....I would think they would be able to answer them. Could the solution be just to visit some other homes in The Villages that are in various stages of construction and see yourself? Could you perhaps speak to the workers actually doing a house and see for yourself? I did not remember if you were long distance or not, but perhaps a week long visit to get all of these answered would be worth it.
Perhaps making a list of all of your questions, posting them here might help. Your future neighbors may know the answers to your questions just by observing other homes being built.
I remember looking at homes in another 55+ community. The sales Rep took us through a model home. A few houses down, they were in the middle of another build. I told the sales rep, "Enough of the model...I need to see THAT one, as it will tell me much more" She thought I was weird.

I really do not know much at all about The Villages. I've only visited the squares. I've never been to a Villages home or any of its neighborhoods. I do know building construction, and am a licensed Home Inspector in the state of Florida.
So, you may ask, (as I'm sure others might also), "Why is this guy on The Villages forum?" Basically, I bought my Florida home 5 years ago, and miss it terribly every day I am not there. I've been stuck up in NY with it's high taxes, cold winters, etc. This forum is how I get my "Florida fix". Even as an "outsider" folks here have been kind to me, and I appreciate that. This year should be the year we sell up north and move here for good.
As to your question about picking The Plantation over The Villages....I work with a guy who bought in The Plantation. We visited, and I ended up buying the house across the street from him. It is the only spontaneous thing I've ever done in my life. When I bought I never even heard of The Villages.
I tell folks there are many nice 55+ communities. Hardly a bad one in the bunch. Like a rack of shoes, they all look good, but one will just "fit right". Check them out. The Villages is a one of a kind place that is doing something right, as almost 100k folks have found.
If you are long distance, perhaps you might want to hire someone who can be your eyes and ears, take daily pictures, etc.
Enjoy the build!
Respectfully, Frank