Thanks for the replies everyone.
I am definitely keeping it. It great to drive and always starts conversations with like minded people when I'm out for coffee. When I restore it I intend to make it look like it did when it was new from the factory.
Yes I have a windowless turret to go on it. I believe it's off a HQ because it has the small air vents either side. I've been told apart from the vents there's no difference so I was just going to have the vents removed when I get it installed ?
As I am not overly familiar with the whole compliance plate thing, I believed the engine was identified on the plates but I could be wrong. I haven't looked for years but I remember there was something that told me the engine is the original one. I might have to look into it again. I think you can confirm it by contact GMH ?
Cheers.