BIG congrats on the pickup.  It is a special feeling to get your hands on that wish pin, like me with my recent Superman purchase, you probably feel like you've spent too much on it by other guys standards or comments but that is all forgotten when it is sitting in the line up.  As long as you are happy - which you clearly are, then happy days and enjoy.

If you do the cling wrap thing on the the backglass, make sure you have another set of hands there to help you flatten out the cling wrap very carefully before laying it down.  I tried it before and as soon as it got a few wripples in it I was stuffed - when I tried to move the cling wrap it just started moving the artwork which was similar to yours.  If I had of had someone else to hold one side and me the other side, stretch it out and lay it down nice and flat it would have been good.  When the TT dried, it dried with the wripples in it and the artwork.  It held it in place well but looked pretty ordinary.  Another thing, be wary of the lifted artwork cracking again as you flatten it out, it depends on how dry and brittle it is.