They guy said it had the arms, wipers, motors etc, a complete set.
However, I'm not sure whether or not it should come with lines for the fluid, or a special reservoir, but I think you need to attach it to the front lines anyways. The wiperblades are dried out though...
Haven't had any experience with these, because of its rarity.
But you'd be able to figure things out, the wiring should already be there. Only thing you need to do is cut 2 holes in the front bumper, but 2 covers for those holes shouls also be in the set.
I've asked for some pics though.
As for the price, not sure what to ask, what would you be willing to spend on such a rarity?