another option is look to see on this site who has it on their available list. Then look to see if you have a mini-match, if you have none, just send an offer asking how much and see what the best price is. At least then you'll know what you would have to pay to get a copy. At this point, I feel like you could afford the game with spare change you would have found on the ground in the last 6 or so months.
Still aiming to trade! Many people don't browse the forums - so I'm hoping that someday I will find someone who will swap! I've reached out to people - but this game has deployability so it is a bit tricky to trade for!