Looking at the bike in the pics below how much work do you think it will have done? The engine casing looks pretty worn in the forst picture, do they wear very quickly on yz's because the one on my wr is less worn and its done about 4500 miles, the seller of this bike claims its done less than 1000 miles. Is there anything else that looks strange / unusual about it? Its a 2007 yzf450 uk spec bike. I am considering buying it as road legal yzf450's are pretty rare. Let me know what you think about the bike please.