I have a Jessem Mast-R-Lift II and need a "Universal" 1 3/8" ring insert to use with a Leigh RTJ-400 dovetail jig. Does anyone know if Jessem and Kreg or ANY OTHER router table insert rings are interchangeable with the Jessem lift? I can order from directly from Jessem but, since I'm located in the USA Jessem is CAN, shipping is TWICE the cost of the ring.