DIY VDSL ISP

Hello,

I would like to simulate VDSL provider environment in my lab:

* VDSL modem(s)
* VDSL DSLAM
* copper pair connecting the two

My current plan is buy this DSLAM http://www.zhone.com/products/MX-160-LT-8P/MX-160-LT-8P.pdf (US eBay seller).
DSLAM will be connected to a Linux box which will simulate BRAS (terminate PPPoE etc).
VDSL modems -- I will be using local ones (EU), proprietary boxes from local ISPs and Cisco routers.

I know my way in networking in general, but do not have DSL-specific knowledge, so any feedback is very appreciated.
Do I miss something?

Best regards,
Alex