Congratulations. This has been a masterclass in successful self building by managing contractors!
More important than that is the contractor selection, project management, etc, and I think it's you (with assist from Mrs P) that has done that so you can feel great satisfaction with how this project has gone. I'm guessing (maybe you said before) your background is in project management and if not it's an even greater achievement.
When you have time and if you have the energy I and I'm sure many others on here would appreciate it if you could share as much as you can on your process for managing this project. What your average day looked like, tips and tricks, preparation, etc. I think this could be really useful for those of us with less project management experience!