Cab roof replacement

[Short 3/4]

Need to do the dreaded cab roof rust repair before things get beyond the point of no return. Found good info in past threads, but have a few more questions.
-Looks like full roof panels are available now. Mines pretty rough, anybody have experience with the repops?
-Any advantage to using a panel bond type glue? Figure that way the spot welds wouldn't burn through all the new paint on the inaccessible inside of the double panels. Rust is really a problem here on the coast, and really don't want to do this twice. Of course I don't want it flying off on the freeway or on a bumpy dirt road either.
Thanks for any advice or opinions,
Tom