I've got an extra one
If you're gonna be in Austin anytime soon, I'll just give it to you. Otherwise, you can have it for the cost of shipping (can't be more than a couple bucks).
*edit* It occurs to me that the top might be a bit scratched up - I would have to look when I get home. But if you want a new one, here is the part number.
http://parts.nissanusa.com/nissanpar...artcode=96916H