HDI didn't need to see core samples to make their offer, and neither will anyone else. imo you're putting the cart before the horse to some extent. the whole point of financing, via major global capital, is to initiate a drilling program.
The latest NR basically stated that drilling our claims was a possibility.
Exploration in this case should mean drilling as that is the next logical step. I expected NAK to pay for this as part of their required expenditures but if this drags out I can see us using a portion of the money we raised to drill a few holes.