i was tanking ado hecks in fp enfo without much trouble and without any real twinking on my 150 agent the other day. he was wearing a couple pieces of combined, but i feel that it's a detriment in pvm as +hp gear is better in those slots and the sps has a stupidly low mbs cap. so a "newer" player with a 150 agent would wear cheaper +hp gear/+nano/+nanocost in those slots and probably do better. hell hte only symbs that are really necessary for that level are chest and brain. brain is questable if they have friends (most people join an org by 150 that will help them) and chest drops off gms for a couple mil. a mix of miy and ofab and LE hp hud would do better for pvm than combined. i'll admit i had reactive chest + igph which helped quite a bit but it's nothing a ci can't overcome. ado hecks/dark ruins is basically the "proving grounds" for new players. it's where you l2p before heading off to inf. ironically it's also where most profs start to be interesting. you start casting your top non-level locked nanos at that level and you start finding funky gear that is actually useful (high ql miys, ql 200 symbs, ado brain, lv2 le huds, decent weaps, etc)
EDIT: my point is that the really expensive armors (combined) are NOT meant for pvm. you don't wear them to pvm. in fact if you wear them in pvm they USUALLY do more harm than good and can be replaced with cheaper armors that actually perform better.
i.e. for a pvm doc a cure for baldness at 150 (worth like 5m) is better than 225 combined (worth a couple hundred mil) so crying that pvp gear is expensive and hard to get when all you're doing is pvm is silly.