IF its genuine and its not a shed then its worth a few quid (maybe 6k top whack?)
however its only worth that to a real enthusiast. and there aint many of them about.
I've seen minkers and top-spec twinturbo XR4x4s not sell at less than HALF of their true value, just because nobody wants to spend real money on an XR then they can get a (probably faster) cossie for the same money