The if the sideplate screw above the trigger is longe enough i can just remove the threads from the end of it and make it into a yoke screw. The brownells part number for the J-frame model 60-9 screw im talking about also comes up as fitting a K-frame side plate also.
940-000-254WS
Side Plate Screw, Glass Beaded
Mfr Part: 216490000
SMITH & WESSON
FITS: 60-3, .38, .357; 317, .22; 331TI, .32 Mag; 332TI, .32 Mag; 337TI, .38; 342TI, .38; 637-1, .38; 642-1, .38; K Frame - Common Parts, .38; 625, .45 ACP; 629, .44 Mag