Arcadeshop is the only place I've found that sells a MULTI Kong Marquee. I have a Double DK marquee I'd love to swap out for a Multi... but no one wants to do the swap and I won't be buying a new one as the DDK one is in perfect (new) condition.
48's and 60's have DK, Jr and 3 on them. The Arcadeshop board can be programmed with all of them plus the D2K. I believe that is what Frizz has in his Double DK Plus machine.