Members? Green dragons are most profitable, hands down.
I actually gain ep while I hunt the ones in lvl35 wild in a bounty hunt world. No one ever takes this suggestion from me, but it's how I've gotten myself to 100m+ along with pking my targets once every so often. Your combat is low, so put that to your advantage- most of the pkers that go up there (rarely ever go actually, maybe once every 2 hours) can't attack you.
If you get a target don't fight them.. just bring NOTHING on you and die for them. Helping someone out (they still get the drop since it's a target) but losing no gp yourself

and once you're at 100ep you'll make lots of cash.
Hope that helped, but if it doesn't work for you there isn't really another more profitable "training option".
If you hate the drags, just train at the ice giants at 48 wild. Less profitable but you still get EP.
Alright, so you can't stand PVP. Then go into non pvp dragons or shoot some addy / diamond bolts at iron drags for visage chance. If you use all diamond[e], I find that you make back 75% of your cash spent on bolts in the long run (accounting range pots), and profit if you bank the bones (get a house in brimhaven

), but you'll mass profit when you get a visage.