1500pts - Orcs Starter Army

Welcome to the forum first of all!

Battlescribe is a cool app and I think with that exact list you posted you could increase it to roughly 1500 points just in magic items/upgrades for your characters/units.

Even something as simple as a ward save (5+ is 30 points for example) on the BSB can be a difference maker.

This and a level 2 shaman would take you to a full 1500 point army.

I think it's worth having a ponder and tinker about how you would spend the remaining points to bring that list to 1500.

One thing to consider is that trolls have stupidity and low leadership so you will want them close to a character/reroll to try and ensure they do what you want.