Here's a thought. JAMMA this and delicate it to the ArcadeSD as planned, with the WG monitor (when i get it fixed...). Then use all the Nintendo electronic guts and Sanyo Monitor for that dedicated Mario Bros wide body "Tully Style" Cabaret i want to build next.
Nice pick up.
I'm not sure the Tully Style would work for a Two-Player game. The viewing angle and spacing is such that it works best for a one player setup. Games with horizontal monitors almost never have a cab that drops them so far back, but rather has them tilted up. If you wanted a two-player cabaret, look at the Asteroids Deluxe design.
If I were you, I'd use that DK cab you have as a template for building a new Nintendo cab. You can do it, I have faith, bro.