I recently purchased mine from my local Ford dealership for only $53.42 (that included tax). FoMoCo P/N is 8C3Z-17626-AA. I was surprised they actually had it in stock and all I had to do was drive a few miles down the road to their body shop and pick it up. This was considerably cheaper than the generic ones sold on eBay.
I have my old valance and is free to anyone who wants it...you just pay shipping. Disclaimer: I won't box or wrap it, just slap the shipping sticker on it and throw it on the big brown truck!
You can calculate shipping from 23462 and the dimensions will be: 71"x13.25"x6.25" Unsure of the weight, but it'll be charged oversized by dimensions vice weight.
Overall it is very good condition. I'd give it a perfect if not for the two grayish discolorations you can see in the pics below. The lower edge has some chafing from rocks, but otherwise in great shape. No cracks or warping. Came off my 2010 F350 at about 40,000 miles.
A few pics...