We seriously looked into this, as we can't afford to live any longer, we looked into narrowboats but the CRT fees are as high as council tax, you have to keep moving unless you have a private berth or pay marina fees, then theirs fuel costs and its damp. With a road vehicle parking is an issue because you can't park overnight in most car parks, and you will get shifted on a road side. Fuel is extortionate, the other problem we found when we looked into it is that your driving licence must by law have your current address as must your registration docs, or you cant renew the road tax. You cant get insurance, and what do you do if it fails its mot. This is the reason most of the gypsies have no insurance or tax, except that they have the advantage of playing the race card over everyone else, and they know their rights as ethinic minorities, which the rest of us don't have. Unless you have money to buy a piece of land to keep your vehicle on (which you will still pay council tax for), or have money to pay for site fees, then its just not workable in the UK