Although No, I have never worked with displays (yet... heh heh heh... planning on building an opti-wand, a optical wand that can be slid under doors and display on a screen without being seen)
I'd definately be careful with buying on E-bay, and especially when it comes to new or bad sellers, I'd stay with people who have 0% negative feedback.
And I did notice the guy from the auction you posted, had negative feedback, and he chose to hide his comment history, noting that he may have totally ripped someone off.
Also it did seem to have 2 wire connections on the side, looked like light pink and light green, on the left, near the bottom bracket.
Anyway my point is this, I'd suggest sticking with stuff from catalogs until you know what you're looking for and how to put it together.
Don't buy what you don't know kinda deal here, especially with something as expensive as a LCD screen.