I think what you have already created looks fantastic.  You mentioned above that if someone wanted one that is completely finished by you that it would be possible, but would cost more...at least $150.  Well, I am terrible at creating models, sanding, painting, assembling, etc.  Therefore, if you would be willing to send me a sanded, painted, assembled = completely finished bridge piece, then I would gladly pay you the $150. (or a little more if you underestimate the final cost of your time) to have such a beautiful piece.  It is entirely up to you, especially if you have other concerns that need attention.  If you are willing to invest your time and skill, then please add me to your list.