Hey, sorry to necro this post, but I was doing this, and found the event constants of all the Mr. Goods items:
Meet 100 people is constant #73 (make it 100) (62 is a similar but doesnt need to be 100 to have mr goods gine you the item I think)
100 Fossils constant #71 (make it 100)
100 traps of yours trigged by others constant #72 (starts at 1, so make it 101)
100 gifts given constant #84 (make 100)
also, if you're looking to be as legit as possible, you need to also set the numbers into your underground ID card, since they don't get updated by changing the event constants
