@celebi , Those are the marketplaces I used minus Pokemoncfj. YHJ is the wild west but has some great deals if you know how to look.
Regarding the Drifblim FB card, per @enlightenedbulbasaur 's thread there is an estimated 1,446 give or take of these out there utilizing the same source as you have noted above - www.elitefourum.com/t/master-list-of-the-rarest-pokemon-cards/28390/1