Thank you again for all the comments. We really do appreciate them.
The washing machine will be the first thing we will be removing from the boat if we are succesful, so the inverter will not be an issue for that. We are not intending to live on the boat, it will be used for weekends and holidays so there will be no need for it. The same goes for the radiator that plugs in half way down the boat. I will be more than happy with the stove for heat.
As for the fridge, again it is something we will have to check, but we do have a 12v/gas/electric fridge we can use in our camping equipment.
We have put an offer in so we will go from there.