for the stove your best bet is to measure it and the opening once removed and just search for a marine unit that will drop in. Do you plan to stay with an electric/alcohol?
Regarding the cutting board you'll either have to make one yourself or have it made. boatoutfitters.com can do this if you provide the dimensions or a cardboard template.
1997 2400 SCR
5.7 Vortec / Bravo 2