There is about 60 of them waiting for you at the entrance in MMF and they respawn if you leave the Hive. Another reason why I don't play MMF. They are there in Adventurer, but only on the main floor and there is an easy way to dispose of them there. As far ar the levelling and XP is concerned 8 mil is about right upon entering the Hive. I am usually about that there and about level 115 when I finish it up. I can usually make 20 or so level in the next (last dungeon) and 10 more levels by cleaning out Baal's Garden and Northern part of Norseland. I usually enter Part2 at leve; 145 or so.
I can't, therefore, help you on tactics with those guys in the upper area since I have never (and never will) play that mod in MMF.
It can be accomplshed, I know, because BDJ himself has done it and probably several more folks have done it as well.