Rolling chassis value?

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I have an sr8 rolling chassis with the later style bodywork, big brakes front and rear, split rims, 4 way shocks etc. essentially an entire car less engine and box. Still has the radiators and part of the loom, has the air Jack points but those are missing as well.

This isn’t a for sale thread as I’m not in uk. More that it’s been sat doing nothing for 2+ years and a mate has asked what I’d want for it. I’m thinking to sell, but really have no idea on value. Any ideas?