I lucked out, cleared each of the areas for 3 named in the Well and Wham!! they all popped and was outta there in 45 min. I realize this doesnt help ya much but they were right where the previously posted players said they would be.
Often times can path around the task NPC's in the eastern room, making the camp an even bigger death trap then it already is for on-level groups. Be aware.
Also drops remnant of knowledge more often then the others.
Been camping this guy for a week for the mana proc aug, and these are some things I noticed:
First, this camp SUCKS. It takes forever to get the snake to spawn, and then when he does, the aug doesn't dropped. 11 kills and every time it drops the neck piece. Didn't keep track of how many were the slot 3 version.
Out of 11 kills, it dropped a recondite remnant 4 times.
It can spawn from any of the 5 snake spawns in the large room with Dtaemi & Morrin. However, most of the pops (9 of 11) were at the 2 in the middle of the room. One pop each at the 2 spawns on the NW wall near the room entrance, and none so far at the spawn on the SE wall.
XP is not bad while you wait, but i stopped killing the scorpions because twice I had the named scorpion spawn at the same time as Doom Snake. Not as easy with both when it's just you and a merc.
Hope this helps. Starting to think that aug is not worth it.