Your before pics look very similar to my roof before my rebuild, never know how bad it is until the skin is peeled back.
Looks like you have a solid roof now, and the new materials should add some life to the TT....., great job
Bob
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2016 GM 2500HD 6.0L/4.10
2018 Jay Flight 24RBS
2002 GM 2500HD 6.0L/4:10 (retired)
2005 Jayco Eagle 278FBS (retired)
1999 Jayco Eagle 246FB (retired)
Reese HP Dual Cam (Strait-Line)