Leaving your "artist" qualifier out as I don't believe bikes are art...poorly made art can't kill you....there are a number of builders with the equipment and skills to make what you describe. The level of customization is as deep as your pockets
As for specific builders, off the top of my head- Dave Bohm, Mike Flannigan, Rody Walter, Eric Noren, and Ira Ryan can (and do) do all that.