Marantz SA-7s1 laser replacement/calibration??

Can anyone recommend a good repair facility for laser replacement/calibration for Marantz SA-7s1 in the NC area? I contacted a couple of Marantz authorized service providers but they all said that parts are no longer available for the SA-7s1. They also said that the entire transport is normally replaced. I contacted a Canadian based repair company that I found on ebay. They advertise repairs for high end spinners and also sell laser units. I got a quote for laser replacement and calibration and it was within reason. I'm a little apprehensive about sending my unit to someone that far away and who is an unknown entity. Any help would be very much appreciated.