Right i got out early and tried to take some pictures, i must admit with out a ramp its pain trying to figure stuff out under there. just used the normal wheel change jack from the back. didn't trust it enough to go right up, or for me to get right under. so this is what i got so far
this is looking head on at the bumper, there should be an air diffuser at the front, which sticks down by about 1 inch
from the side you can see its set back about 3 inches from the front of the nose
this will need to be cut through or removed for fitting, not a major issue.
now this is where we hit a slight snag the number plate bracket requires 9 inches from the tip of the nose on the front bumper to the back where it rests. the problem is that the undertray slopes up towards the engine after about 4-5 inches. but the saving grace is i've seen some bolt mountings which i think i can make a frame up for it to mount to.
i'll sit down and do some drawings and see what i can come up with. if anyone else has some ideas please feel free to share