Thanks guys. The purpleheart in the body will only be about 3/4" thick, and the two maple pieces will be about 3/8" thick each, for a total maximum thickness of 1-1/2". The body will also be tapered out to about 1/2" thick at the edges, so weight shouldn't be a problem.
Also, I believe the grain in the maple is exaggerated so that it can be seen online. I should get it next monday, so I'll know for sure then.