Which server are you on and which side do you play? If you can't find any on one faction, try checking the other faction (I know I had to swap over to Empire to find someone that could make most of my Robust 27 unlettered mods until someone on Repub finally learned it). I know that most of the servers maintain a decent network of crafters that know what the others craft and, at least for Pot5 (my server), there is actually a consistently updated thread that has the various crafted items and who makes them. Spamming on the fleet isn't the only way to find crafters and, oftentimes, for the specialized items (like specific mods and enhs), it's not enough.
Nah, I checked on both sides believe me, and nobody has them (I'm on Battle Meditation, Republic side btw, and there are only a few guilds beside mine able to farm DG/Hazmat gear on this server)