There is only one vendor that I know that sells samplers, completely legit but their prices are rather high. Generally, for samplers you need to get them from BOTL selling multiple items(much like the NCs in the buy/sell forums here)...you just have to know where those places are, which generally comes in time and friendship. Someone may reach out to you if they get the right vibe, pretty tight knit group that tries to protect our family from people who take advantage of trusting, kind brothers. Stick around and you'll find your way to the key to open the door.