Hi,
Don't let anybody stop you from making something you really want to experiment with. I would suggest that you chamber the body, and if that doesn't ease the "brightness" enough, add a neck of mahogany or black korina. I made a LP type with a chambered naturally-stained maple body, black korina/pao ferro neck, and 490/498 pickups, amd seasoned Lp players loved it. It found a very happy home. Used an oil finish, too. So you CAN break some of the rules!
Peace,
Dave