Looking for some list help for a used lot of CSM

Ave Dominus Nox! Glory to the 8th! I've been "working" on my Night Lords army for a while now. I only had a unit of Warp Talons, Harkaan, a Master of Executions and a unit of Terminators. However, a friend's cousin was selling off a lot of his armies for a decently cheap price in lots, so I picked up his CSM which were unpainted to bolster my NL army! However, I'm not worried I may have jumped the gun in an attempt to just get in on a good deal. I'll list what I got below and wanted to get some recommendations on what of it I should field and what I should maybe try to resell or trade for some other additions to round this out better! Thanks in advance! I got:

5x Chaos Bikers 25x Legionaries 5x Havocs 15x Possessed 1x Master of Possession 1x Chaos Lord 1x Heldrake

And to recap, already have: 5x Warp Talons 5x Terminators 1x Harkaan Worldclaimer 1x Master of Executions