I've got the same bike, same size, same condition and am impressed with it. I like your touch with the ring guard on your chainset - not an easy item to find these days and it looks good too. Mine had very low miles but the UG chain was certainly elongated - strange. The rims are lovely and the metallic grey over black has all sorts of colour flecks in it when you look close up. Mine rides really well now and I'm a fan of Biopace, although the HP version is my preference. 27.2 seat post so a proper 531 main triangle. To my mind it's a £250+ bike in that condition even in this rotten market - I wouldn't want to sell mine for less and its rarer than a Royal. Decent M450 hubs, 105 levers and alloy mudguards that really shine when you T cut them...