I bought the common set (24 skins @ 1000 points each for 24,000 DEC) and the rare set (23 Skins @ 2,500 points each for 57,000 DEC) using the in game store. Since these items cannot be traded or sold so I am thinking maybe they are only available in game, knowing my luck there is probably a better option out there but I didn't see one. I choose to buy the skins because this secures 81,000 DEC for life into the game. I felt this will make its way to the development team and they deserve for all these skins to be sold out for their achievements. It also pays about identical to the liquid DEC holding, you actually gain an edge of 500 Airdrop points once you have the skins and do the math.

BNC is a smart move. Anything with acceptable range of fees works. Mainly I use Litecoin for that very reason.