I was thinking it was just a .100" spacer used with the stock Nuke lug. Without pulling my Nuke down I'm thinking it's .187" thick like a factory M700, so maybe a 287" thick lug? One piece would be much better than two IMO. I would try that. Does anyone sell these lugs?
Mine mics out at .1850-.1852 so that's what the print reflects. If you make this print exactly you can't use the wedge lock on a XYLO, but if you have it made with a 1.25" boss forward of the original lug part instead of 1.35 you'd be set.