I'm concerned regarding the 30% tidbit. I think the MOST FAIR way to distribute it is this:
For each buyer, you get 1. If I am reading the spreadsheet correctly that's 97 (150-97=53). Then, if you ordered 4 or more, you get a crack at a second one. 44 people ordered more than 3 (53-44=9). Anyone with more than 10 gets a crack at a third one. That's 7 more (9-7=2). The final two can go to Arklan as a tip.

Thoughts?
This makes the most sense if we are limited to 30% of the original order.