maybe the triple with the glad wrap on top to bed it down first ,remove glad wrap when dry, then more triple thick on top....my work mate did this and it came out really good, he has steady hands.

+1, i reckon this would work ok on this bg, especially if some of the TT can be made to go between the cracked/lifting artwork and the glass.
I did this to my KISS bg.. worked pretty well, not perfect but it was a BIG improvement on what it was beforehand  and the lifting was a LOT worse than in the pic in Crashramp's post.