get a vw bora 51 plate, go like shizz, brilliant on fuel, runs on veg, ticks over on cold start, tax it crazy cheap for a year, lovely drive...
mods to the one I know, tank sender base valve removed (plastic flap) pipe from sender to ip added ((no jionts) and due to a pump leak (cant be bother to change pump) 12 volt valve to stop flow back to tank, wired off stop soliniod valve for power on when key is turned.