There’s a company here in Australia called Auto Innovation Centre that scan vehicles / vehicle components and sell the 3D data. Not sure if they have data for Y61 and if they did, it would be for a RHD Australian vehicle, but it won’t hurt to ask…
there is a difference in the knuckles and hubs.I have a y60 but with y61 diffs. If it's just the diff you are interested in, I could 3d scan mine. I only have access to 1mm resolution scanner though.