Hi guys, i'm Nick long time reader first time poster.

I' m trying to use Sketchup for setting up backgrounds for illustrations. This works perfectly if i start in SU and then find and set up my perspective grid in Photoshop. But this time i want to use a simple sketch as a starting point:

As you can see i set up a vertical vanishing point and i want to model some buildings in the background. I tried to use Match Photo but i can only line up the red and axis' and the blue just stays straight...

I also tried to match it by hand but after fiddling with focal length, field of view, tilting up and down and swearing a lot i couldn't get it right

(now i'll be honest and say i did find a nice angle that didn't match up with the sketch but looked good but i really want to be able to match up a vertical vp - it would just come in handy later..)

Any tips/ideas?