Well, I saw Maze4's post on his Maze 4 northbridge block. So I figured I have a maze4 gpu laying around, lets give her a shot. Original post found here:
http://pclincs.co.uk/Forums/showthre...&threadid=5843
I was skeptical if the holes on the block would even match the NB mounting holes but by god... they do.

Anyway, this is what I came up with in about 20 minutes of work:
Note: This is test fit on my old gigabyte board... not my real one