There's also hints in the number of samples per hole. 160...

There's also hints in the number of samples per hole. 160 samples across 4 diamond holes. The lab has to cut and prep the core, then assay = money. Need to take everything with a hefty grain of salt because there's a lot of assuming done in this.
Typical diamond core sampling practices ranges between 30cm - 1m of core per assay, depending on a range of factors like mineral composition and lithology. We don't know what their protocols are for waste sampling, but typical might be 3m of sampling across the pegmatite/waste contact into the waste.

We know of at least 2 pegmatites, there may be a 3rd but until we know of the pegmatite dip angle, I'm not yet inclined to believe 3.
We can assume there is 6m (two 3m zones either side) of waste sampling per pegmatite domain, assuming the distance between pegmatites is >6m. We can then also assume that, on average, if the pegmatite is mostly homogenous in mineral composition and grain-size, then for the most part there will be 1 assay sample per 1m of pegmatite.

With 160 samples across 4 holes, we can assume 40 assays per hole, with 2 pegmatite domains, and 12m of waste sampling across the contact per hole.
Therefore, we can assume that there are 28 pegmatite assays, assumed to be 1m.

Therefore, bull case is 2 pegmatite domains, totaling 28m, and hence two pegmatites of approximate width of 14m.

Intermediate case is some internal zonation of the pegmatite, and so varying assay lengths are taken which are estimated to be average 65cm, with 3m waste profiling, 18.2m of pegmatite, two pegmatites of ~9m width.

Bear case is 6m of waste profiling either side of the contact, so 24m of waste sampling, 16m of pegmatite, <8m per pegmatite.
Diagram obviously not to scale.