I just got my Pld to 60 and after a horrible time in Castle Zvahl Baileys, I decided that I would try doing this part of the quest on my own. When I saw the info given on ZAM, I figured the fight would be a piece of cake. I unfortunately didn't check the date of the postings. The information is dated and pretty much entirely wrong. I'm putting this up in hopes that someone considering soloing this fight or the such has a better idea of what they're getting into.
Let's start with Basic Info:
It is a Ranger, yes. But it has 10,000 hp. I don't know who counted 5,500, but maybe he was a lot easier back then.....
Now as for my experience, I went as 85WAR/SAM41 along with a level 70 Soothing Healer Npc. Based on the info from ZAM I figured I could just take out the RNG real quick and work away slowly at the PLD. I used Retaliation, Restraint, and Mighty Strikes off the bat, didn't remember Warcry. With full Tp from clearing out the zone beforehand, I let loose with Sekkanoki and a Raging Rush SC that totalled about 2400 DMG. This is about the point I realized ZAM had screwed me over and things were going to be more interesting than planned. I used meditate and let loose with another WS shortly after, continuing to cut away at its health. With Seigan and Third Eye I was able to dodge some of the hits coming my way, but together and on top of you, these mobs take down any shields pretty quick. When they do connect, both NMS hit me for on average 80-120 DMG. My Npc kept me alive for the better part of this fight, spamming Cures, I know I saw at least 2 Cure V's in there. One-Eyed Gwajboj (PLD) used Cure IV on twice to heal Three-Eyed Prozpuz while i fought him, gave him back 740 hp. In total I used 5 weapon skills on him, with a skill chain on the first, in the end was about 10,000 DMG dealt. On a positive note, if you kill him fast enough he won't get to use Eagle Eye Shot, at least he didn't in my case.
Hope this helps.