Just took a look at both turntables, the MS and the Luxman. Yes, I think you will need to have a special mount machined. Have a blank machined and a bar with two holes so you can scribe the spindle to pivot distance on the blank mount.
I have an aluminum bar made from a scrap piece of 1" x 1.25" with a spindle hole at one end and another hole to take a Starrett scribe at the other end. The holes are accurately machined so I can scribe the pivot to spindle distance very accurately. After scribing the arc on the blank, the machinist can proceed to finish your mount.
BillWojo
I have an aluminum bar made from a scrap piece of 1" x 1.25" with a spindle hole at one end and another hole to take a Starrett scribe at the other end. The holes are accurately machined so I can scribe the pivot to spindle distance very accurately. After scribing the arc on the blank, the machinist can proceed to finish your mount.
BillWojo