New(ish) sorc build advice.

After a 20something year break I decided I wanted to play a little D2 a while back. After recovering my old battle.net account, I grabbed a copy of D2R, started a sorc and went at it. Looked up some runewords, smashed through normal and nm solo with fireball, respected to hydra/orb, did some farming and continued through to the end. Got myself a cold sunder, specced to blizz/orb and started farming.

At this point I'm level 90, have pretty decent gear in the scheme of things (+13 skills, maxed resists, 105fcr (though I need to reroll a spirit monarch to 35% to hit this in mf swap... But it is being elusive and I'm outta hel and talthulornamn trickle in slowly while farming other shit)) and I'm wondering what I should be doing skills wise to maximise where I'm currently at.

I put es in the mix to give it a try, but I find I just don't have the points to make it effective while also using orb. Is it time to drop orb completely and just max blizz synergies, or drop orb for teleport and simply make es work correctly?

I'm definitely too D2 broke to do too much trading at this stage, so vast improvements in gear or swapping to loght are out of the question, just trying to figure out the best farming spec for what I'm working with.