wish u luck mate, but facebook market? Probably not the good one for searching ur target audiences.
Its debatable at this point, This Forum,Reddit,Coin sites ....ect ect , have alot of great people already involved. My target audience is small businesses looking for a low cost way to accept bitcoin. In some cases they are just curious to how much extra revenue they can make. Alot of these small companies have facebook pages as there sole web presence , this is the only reason I thought to give it a try.
Trev