Any experience with ebay setback firewall??

[am0254338]

Just as the title says, I am wondering if any one has had experience with the firewalls from "classicparts4u" on ebay. It's a 4" setback and are $335 and free shipping...it's either a good deal or there just cheaply made...there is no measurements of width of the setback either and no picture of it actually installed in a truck. Here is the link http://www.ebay.com/ulk/itm/401163377380

If anyone has bought one of these I'm curious to know the quality and few measurements...also if there are any pictures that would be awesome.

Thanks,
Andy