Honestly, all of the questions about Zimm can be said about Panda. Both are young, Zimm has more potential but Panda is no slouch you are looking at a floor of 80/20/90/.300 most years. Only thing is his Ceiling is probably around that point too.
Prince is way better than Tex. Bourn won't kill your Average.
This deal sees you improving a lot in BA, without giving up much in other Cats.