Thanks, got round it in the end by swapping the seat fabrics to the old frames but made use of the new back rests. Only issue there is the tilt release lever is in a different place. So I cut a hole for the lever and covered both with some fabric I had left over from the parcel shelf I made. Overall I'm pleased as they now look the part and give the car a whole new look inside. Painted the door cards and handles too. (Bottom pic shows seat before the cover up patch was added)