Would some kind sole with a long door 4/4 that has factory fitted wing treads (singles) do me a small favour please.
Now this favour is works on the assumption (possibly a little naively) that MMC have some sort of template for drilling the mounting holes for the wing treads rather than fitting by eye.
I am after three measurements please which are to the tapered tips of the treads:

Yellow Arrow - edge of the wing beading to the rear tip of the tread;
Green Arrow - trailing edge of the front wing to the rear tip of the tread; and
Orange Arrow - edge of the wing beading to the front tip of the tread.

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I'm going down the 3M VHB tape route for fixing so the mounting bolts will be going. In a bit of a quandary as to what to do about the mounting bolt holes in the aluminium. Do I leave them in which case any water ingress will pool on the upper side off the tape which is waterproof so may not be an issue. Or do I try and seal them over? With rubbers fitted a small dab of clear silicone sealant squeezed into the hole from the underside and smoothed off? Any other ideas and suggestions gratefully received.

Many thanks in advance. Very much appreciated.

2017 4/4 80th Anniversary