My water heater is starboard of the galley sink under the cabinet. In order to get a genset under the companionway steps I can relocate my water maker and my house water pump/accumulator. The only thing I don't like about locating the genset there, is it places it over the keel sump and a few other items I have in the bilge forward of the v-drive and engine.
I would hate to lose the storage in the walk through since its easy to access and there's a lot of it. Under the chart table is interesting... The northern lights must be fairly compact to fit there.