This list is what i own for my Beastman armylist, represting an Undivided army.

Heroes

Bray-Shaman 1 Hand Weapon; ; Undivided; Level 2 Wizard; Staff of darkoth 1H 135

Wargor 1 Hand Weapon; ; Undivided; Slaughterer's Blade; Chaos Armour 1H 110

Wargor 1 Hand Weapon; ; Heavy Armour; Undivided; Gaze of the Gods; Enchanted Shield 1H 104

Core

Beast Herd 1 Ungors have spears; 12 Gors; 8 Ungors; Standard Bearer; Champion; Musician 1C 151

Beast Herd 1 Ungors have spears; 12 Gors; 8 Ungors; Standard Bearer; Champion; Musician 1C 151

Beast Herd 1 Ungors have spears; 12 Gors; 8 Ungors; Standard Bearer; Champion; Musician 1C 151

Tuskgor Chariot 1 1 Bestigor with Great Weapon; 1 Ungor with spear; 2 Tuskgor; 1C 85

Tuskgor Chariot 1 1 Bestigor with Great Weapon; 1 Ungor with spear; 2 Tuskgor; 1C 85

Special
Centigor 5 Hand Weapon; Light Armour; Spear (cavalry); ; Standard Bearer; Champion; Musician; Shield 1S 130

Rare

Dragon Ogre Shaggoth 1 Hand Weapon; ; Great Weapon; Light Armour 1S, 1R 306

Total points:1408
Models in Army:71

Anything else I should get to complete this army and reach the 2000 points milstone?

I may add in another Chariot though.

I have added 12 Beastigors and 3 Minotaurs

If you want to reach 2k, I would suggest upgrading one character to a lord so that way he gets better and costs a bit more.

Although I haven't played with beastman that much I think you should drop those centigors..seem a bit too unreliable to me and instead add a second chariot, I think that should give you a bit more punch in the flanks...but thats just my opinion ^_^