Or keep it original. People chopped the roof off vans because no one wanted them. People have been raiding GTS's, Statesman's, Premiers and common cars for the dash, front doors and noses for years, it's now getting rarer and rarer to find a four door in good nick and for a reasonable price. I think if you found an original six cylinder Sandman it might be worth keeping as just that. Because everyone wants a 308, the scarcity of the six has to make it worth something?