rslubby i understand what your issue is the problem is there is many people out there that will buy a car late at night but you dont know how genuine thay are till thay turn up, if he's genuine and i was you i would give him some money back just for being the way you was with him, even if it was £20 for some fuel....
i bought my cosworth of someone at 11:40pm i didnt even bother to look at it, i just done a check on chassie number etc and that was it paid cash put it on the trailer and left