Only drawback with getting a key by post from Russ is you'd need to remove the EWS (immobiliser) from the car and send it to him so that he can program the immobiliser transponder for the key then you'd need to involve Andy (Trikey) to program the key's PCB serial number into the car to get it to operate the central locking. Better to have a day out to Russ', he makes a mean cup of tea
He did a 2nd key for the 260 I bought local to him before I drove the 4 hours home.