Lv40 DE SK, hitting a wall.

[leezard]

Your gear isn't too bad but for upgrades I would look into:

Clay guardian shield 25 ac 50hps 1/5 price of atramentous shield.
Keep that helm. Hps> int.
neck: glowing bone collar. (Might be a tough solo camp but possible) ac5 hp25 mana25 although the seb neck is fair.
Belt: sludged girdle is cheap, has more ac and int and hps win win.
Back slot I would try to round up a friend or two and camp the HBC yourself. Great hps until u get a haste cloak or even if u don't.

Otherwise IMO u got enough advice to work with already, good luck!