If I wanted to try a resource estimation I'd draw a line down...

If I wanted to try a resource estimation I'd draw a line down that plan and work out the Easting on each section and average the intersections within 40m of that line. A bit rough but it would suffice. The gm hits are plotted on the plan on the collar position so they're not located at the actual downhole position.

Strike looks like 250m, thickness about 10m??, assume a down-dip length of 100m, grade????

I'd say they're gonna need a lot more to support a mining operation. Lots more work to do.