"You're gonna need a bigger boat."
Good suggestion Sab. It's got me thinking a bit on planning this. I might get a few sheets of A4 to form the blank mosaic & first draw the perimeter of the thing & quickly lay down some landmarks for references. I'll then take each sheet in turn for the detailed sketch. I can't think of another way to mark the overlapping sections accurately otherwise. Might also mean making a dedicated drawing board for the exercise so I can place two sheets side by side to develop the overlaps at the same time.
This project will happen along side my plan to also sketch the Dunlop Objects, many of which are in the LMC. Should work out nicely as this will see the entire year's sketching sorted.