In CamperMog, which was a Netherlands truck, we got by with changing the shorepower inlet plug, changing the battery charger to 110V, and using REI-sourced adapter plugs for all of the outlets.
The problem you face is that for any given wattage, 230 volt wiring only carries half the current, so the wiring will be lighter gauge than would be ideal for 110V. But most North American DC camper loads are pretty small, and all the circuits were protected with breakers, so we did OK. But we also added a Prosine inverter, wired straight to the battery and with dedicated outlets with proper gauge wire for AC loads.