The way it would work is that you insure youself on it for a year - not even drive it - but just to build up the no claims bonus.
It doesn't matter about MOT or tax because it won't even be driven so you wont be able to have an accident that will void the policy.
I thought to insure a vehicle, it had to be taxed. Or is the other way round...? I'm showing my lack of knowledge now.