I guess it's nearly impossible to find even a similar drum wrap these days.
Is it not possible to glue the wrap back together at the shell?
Indeed the value of the kit will go down (to just the value of the demounted hardware parts selling them separately on ebay). In case that you rewrap the set, maybe the money you earn back can be kept on a certain level if you choose a classic finish like WMP.
But it may happen as well, that you just get the same money for the kit that you have paid before for the wrap alone ...
If you really only want to make money out of it, take all hardware parts off and sell each one separately on ebay (although I'm NOT a friend of this kind of procedure).
Ralf