Here's a really cheap complete ZMR250 kit on AliExpress. Looks like its made with cheap parts but i think its worth the risk. only $80!

http://www.aliexpress.com/item/Pure-Carbon-Fiber-250-Quadcopter-frame-CC3D-ZMR-1804-2400kv-Motor-5030-Propeller-CC3D-Board-LED/32419502246.html?spm=2114.031010208.3.2.t1XOFQ&ws_ab_test=201526_3,201527_1_35_36_71_33_72_34_73_74_75,201409_4

I'm not 100% comfortable with customs + duty so would prefer to do this with someone experienced. Otherwise is there any hobby shop out there that can help me with this custom order?

Pricing is coming down drastically with every passing day. Sellers please start reducing prices!

Here is a suggestion try to get it once.

Now what if any of the component is dead on arrival. Which is very common with cheap kits

You can buy the items individually and avoid customs, customs catch only bigger parcels, so if you can get individual items at a few dollars extra go for it.

avoid those escs, they are a real pain in the back. better buy some branded ones like emax.

This seems like a great deal at first but it is probably a bad idea to buy it. I love savings as much as the next guy but buy (unreasonably) cheap buy twice!

1. Most of these cheap Chinese ZMR250s are not actually carbon fiber but 'glassy carbon' AKA some sort of fibreglass, which is much weaker.
2. The motors. 4 ZMR 1804s from other (Chinese) sellers cost half as much as this entire kit. This makes me seriously doubt the quality of this kit. Plus, ZMR motors are supposed to be not so great with mediocre thrust as compared to others in their class.
3. The flight controller looks like a CC3D clone. Could be OK.
4. These look like some no name ESCs that claim to be SimonK flashed. I would not trust them.

Even if you get this kit working, I doubt you will get much performance out of it and will probably end up spending more on spares and upgrades than on the kit itself.

Well i'm not opposing somebody but zmr motors work well for me!
Here is a demo