He doesn't want a long board, he wants a 5' board with 3 fins under it. I worked up all the costs and I build in buying a cheap used board with shipping to use to make templates. =) I hope he goes for it.
As for the top I'm going to confirm with him today but I'm assuming its going to be flat and just the lower part will be profiled like a surfboard. The shelf will be floating so none of the board will actually contact the wall.