Hello

Im new to this forum, but i looks like the place to go for advice about china frame.

I am looking for a 29 inch full suspension frame. I think the market is vastly confusing. There are an incredible number very similar frames at similar prices.

Initial question
1. Are frames Coming from the same factory?
2. If they do not all come from the same factory which manufacturer produced as the best OEM China frame?
3. Is it best yo by from ebay or directly from the manufacturer?


requirements
I have the following requirements.
1. UD matt finish
2. 142x12 through axel
3. Taperd head tube.
4. As much internal cabel as possible.
The following is not a requirements but a big plus.
5. 165mm rear shock (So I can reuse the one I have now)
6. direct mount front derailleur (The plan is to run 1x11, but it's nice to have the option)
7. BB92 buttom bracket (To get a newer standard.)

Options
I've looked at the following since it has a reasonable price and meets most of my requirements.
http://hongfu-bikes.en.alibaba.com/product/1468028135-213714322/29er_Full_suspension_Carbon_Frame_Disc_Brake.html
or
http://www.xmcarbonspeed.com/Productinfo.asp?f=1295
or
http://www.yoeleobike.com/29er-frame-carbon-mtb-suspension.html

But then i found this. I like the frame design and maby 27.5" is ok. Im 179Cm tall, maby 27,5" is the right wheel size for me.
http://uis-carbon.en.alibaba.com/product/787861442-219249352/Chinese_carbon_full_suspension_27_5er_frame_MTB_650B_full_suspension_27_5er_frame.html

But then there's also this one. I'm not particularly liking the design, but maybe it's a better frame.
http://www.carbonality.com/titan-29er-suspention-mtb-frame.html
or
http://www.dengfubikes.com/product/detail.php?id=195 But i live in a flat contry, so most riding is Cross contry.

Other suggestions are more then welcome?

Size
What frame size should i go for, now i use 18" or 18,5" but many of these frames are 17,5" and jume to 19". Im 179cm tall.

Wheel

I'm still not sure I buying OEM carbon wheels. But if I do I'll also need some help here.

There are many different width, height, hole number, etc.
What to choose?

It's a mix between Cross contry and trail riding.
It should be tubeless

I really there is somone who can help and share their experiences.