Seeing as there has been a few threads on 851's, thought i would put in my tuppence worth and post a few pics of my 851 which is nearing its restoration. Bought it after it had sat around in a friends garage for 11 yrs, when i received it, it was all there but v tatty but ran beautifully, then last yr began a restoration, it will be finished in a few weeks time. You can see the state it was in when i (my mate Andy) began the strip down. Its bloody beautiful now. I may need to sell it to fund the purchase of a house, i thought it was a keeper, there you go.
Thanks for your advice mate, you have missed yr calling in life, chances of you making it as dry witted comedian have passed i feel.