I'll not argue as your figure of 200 Tonnes sounds reasonable but that 200 tonnes will contain some unmineralized rock, not sure what's usual but 10% at least. Even with some high grade spotting I'd not expect more than a few ounces per tonne overall.

Don't get me wrong here, if they can pull out 200 tonnes and get 400 ounces of gold out people will go nuts because that's exceptional. Just don't expect them to payoff the ramp and access with the proceeds from 'Bulk' sampling.