Thanks Alfred, I didn't realise it was already there.
Regarding the tolerances it seems this Tru-Way chart is based on the original MB diagram, which includes tolerances on some, but not all, dimensions, plus some additional diagonal measurements added by Tru-Way. Their instructions state "For practical purposes a 1/8" tolerance is recommended on most dimensions". That is more than 3 mm. I think the MB factory would have been building tighter than that.