Can you convert a Rolex 1030 calibre into a 1035 GMT (by simply installing the missing date & GMT parts)? If you can, what are the specific parts & steps required to do so? I need a 1035 GMT movement to complete my 6542 project watch (which is currently powered by a modded 2846) However, after a seller's screw-up caused me to lose a once-in-a-lifetime deal on a complete (although partially unassembled) 6542 movement, I am finding that locating another complete 1035