Sorry, no W58. What I can do is give you a drawing over the holes against the bellhousing. Let me know what format you want the drawings in, I have SolidWorks and Autocad.
i have made up a wooden template at the moment so that i can get the engine and box test fitted. once i am happy i will make it up in aluminium and produce some drawings. however the 1uz bellhousing is tricky to use an adaptor plate with as it has no dowls and uses the centre machined bore (large hole) to locate the box accuratly.
i will be machining the larger lower two holes and use hollow dowls (1/2") with an M10 bolt through the middle.