Yeah there seems to be a problem with Mfk still.. But I have a group of 6 lapidifer and they area great fish. Just make sure you keep good water quality because these fish can become sensitive to ammonia, nitrites.
No I didn't get them in RI, I got a group from mark chen (Discus Origins) and a group from Jeff Rapps (Tangled up in Cichlids). I had my retro lapidifer since may and retro xinguensis since November.