The Peripheral ring clamp from the HR-X lists for $500.00, it will fit the Scoutmaster, & Super Scoutmaster acrylic platers, but NOT the standard aries Scout. What you saw was a complete Aries acrylic platter, upgraded bearing, ring clamp package for $1100.00. It will only fit older TNT's, Black Knight, & Aries tables.
Unless you have someone make you a higher arm-board for your Scout Jmw-9 tone-arm. But then again you will have to spend to get the $1100.00 combo as you need the larger platter then the Scout's.
The only affordable way is to do a Scoutmaster upgrade/ Scout trade-in. And then buy the clamp, as walking into a machine shop with $200-300.00 isn't going to get you one made. Good Luck