Hello, I’m concept artist Pene Menn in Korea 
Now, i would like to introduce and share my custom 3D vanishing point perspective grid waht i have made.
I used 3D-Max and imported 3D Layer in Photoshop for this “PeneMenn_3D_Perspective”.
I hope this “PeneMenn_3D_Perspective” helps you a little.
You can see this youtube_link below, how to use & free_download. 
http://www.youtube.com/watch?feature=player_detailpage&v=k50EbcENYuQ&list=UUvRUet0sIcqG22sbEqNH2Cw