https://www.premiermarinas.com/~/media/downloads/rates%20and%20charges/2014%20prices/brighton%20berthing%20price%20list010414.ashx
http://www.boatsandoutboards.co.uk/House-boats-for-sale/sm-9031-makahla/7338#fF8HpyAmbtVLk2C6.97
Perhaps not quite as cheap as you might imagine.
If you are a young couple then one of the things to consider is the patter of tiny feet in a few years. If so, whilst moving up north might get you more for your money, the benefit of having family nearby when you have a young family cannot be understated. Obviously not impossible but a...