I'l bet whoever winds up with that horn has a real conversation starter. It probably plays great but not for that price for me. Custom trumpets are very interesting as long as you still have a daily player in case the custom is just for show. Face it, how many people would drive their hot rod to the A&P for the weeks groceries...not very practical.
You all know I like to be out of the ordinary, well, I think it looks classy. How it plays may be of secondary importance. Most collectors rarely play all of their horns, and if they do, its just for fun anyway. Best wishes.