You may not need to have two heaters. If you put one in - you may want to choose the port hull
you don't want near your own bed). That is possible in the sense that there is plenty of space to duct big hoses from one hull to the other - I discovered lots of space under the cockpit
floor - you can remove the vertical wood panels
from the "bridgedeck side" of the aft cabins by undoing a few phillips screws.