Hi Simon, welcome to the forum.
Depending on the year you could register it as historic vehicle, this will make it tax free, and if you are using it for agriculture you don't need to have it mot'd either, you need to tell the post office that you use it for ag each time you tax it and you need to fill in a form saying that its used for ag if I remember right, not sure about the form bit though.
Otherwise there's limited use if you research it, doesn't always suit everyone though

Cheers, Brian
