Have a look at my build thread starting here
I redid the insulation and ceiling liner without removing the roof. It is holding up well.
Thanks for the link, Vic. That was exactly the level of detail I was looking for regarding the headliner (and what's behind there). I like your solution of using a layer of reflectix between the ribs and the headliner material. It sounds like I can definitely get a thin layer of insulation (thermal break) material between the aluminum and the headliner fabric. That's great news! Now, I'm off to find some suitable material (still thinking EZ Cool/Low E). I will see if the guys at ATC would let me get this on the roof before they seal it up.
I actually read part of your build thread in early April, just before you started on the roof. Congratulations on the awesome build!