Amazing input, thanks ever so much Gixer1460! , I will write down all this and memorise it, so it look like I know what I am doing... ... Unfortunately I doubt it will be room for negotiation, a bike with same age and higher miles they go for around £2300 and the seller has advertise it for £2000 for a non haggling fast sale, I will follow your tips on faults pointing and hope I do not leave with a blue eye...
Thanks ever so much!