in what way has the headgasket gone? oil in the water. water in the oil or just a small coolant leak going down the side of the block? Its not the right thing to do but a few bottles of rad leak will stop the leak down the side of the block if its that. and the new owner wont no untill they change the coolant .. had it done to me before lol It seems to good to strip having had a respary ect. have you got the old bonnit lights and rear door cards? Pehaps sell the wheels and surpension and swap for standard sell the headlights, swap for standard, sell fogs, swap for painted black blanks then