Thanks guys for all your inputs. Well just because the bloke is asking 870 pounds doesn't mean I have committed anything on the price.
I'm thinking somewhat around 545 GBP, if he is willing to strike a deal at this price, well, otherwise he can keep it.
However, going by the price norm here for a CI bullet it is actually priced OK, but there is no harm in bargaining.
Well maintained CI bullets can command over 1200 GBP here. What has intrigued me is the fact that it's difficult to source a classic CI bullet and most owner's don't sell their RE's easily.
The paperwork and legal issues can easily be tackled.
Only thing which remains is the mechanical issue , although a complete engine rebuild will not cost much, it's difficult to source a good mechanic.
The owner of the bike is out of India, in France and most probably he will return end of May to sell the bike( he has two more bikes to sell).
I'm just waiting for him to come, take a thorough test drive and negotiate the price.
@Bilgemaster yes man, I do agree my name doesn't sound very Indian but I'm one☺️. I'm an Indian Christian surname Mathew.
Aesthetically speaking the bike looks good and the pictures don't do any justice to it and I have long wanted to own a CI bullet. Keeping my fingers crossed, let's see the outcome if this.