Requesting a build

[Momsboys]

I would like a light monk preferably halfling. With 450+ hp (with gear) and nice stun dc's.
Preferably 1st or 2nd life.

[Kinerd]

Monks are pretty straightforward to build. You want Str, Dex, Con, and Wis, right? So we start with 6 points in each. If we're going halfling, that puts us at...
12 Str
16 Dex
14 Con
14 Wis
...at a cost of 24 build points. If we put another 4 points in Str and Wis, that puts us at 32 points and...
14 Str
16 Dex
14 Con
16 Wis
...throw all our level-ups in Str, grab a +1 Dex tome, and we're good to go.

.

Feats!

GTWF and Stunning Fist.
If you want halfling, presumably you want the dragonmarks? So there's 3 more slots.
Precision for your Shintao pre-req.

Now we have 2 more for Toughness, Improved Sunder, Improved Critical, Power Attack... ouch! For this and many other reasons, you're better off going human or half-elf. Here's how a 32 human would shake out...
16 Str (+levels)
16 Dex
14 Con
14 Wis
Now we can get Toughness, IS, IC, PA, and one more with our human slot (I recommend Stunning Blow).

Enhancement wise...
Monk Improved Recovery 3
Human Improved Recovery 3
Shintao 3
Wind stance 4
Fire stance 0 - never spend AP on Fire stance
Human Versatility 4

HP-wise, we're at...
160 monk
20 durability
22 toughness
20 Toughness 2 enhancement
40 2 Con bonus
185 gear (6 con, 2 con tome, GFL, green steel, Argo favor, Toughness enchantment)
=
447

DC wise, I advise you use Vampiric Stonedust Handwraps and a Spare Hand belt. Between your heal amp, Lesser Vampirism, Fists of Light, and all your fancy monk defensive abilities, you will be very survivable and have good DCs to boot.