Hi Rob,
If you go on to CML's website and checkout the matt black shell, this will give you some idea for around the spur gear cover. I did this, and marked it out with a sharpie, then cut and test fit, cut a bit more until its right.
I left the back long, then kept cutting it up a bit at a time - straight. So the back of the shell rests on the gearbox - it can't go any lower. Make sure to leave the sides long, but check for clearance of driveshaft + wishbone at full suspension compression.
My shell is with Carl Latham being sprayed up, expecting to have it back Thursday. When I do I'll take loads of photo's, so if you can wait until then to cut I'll do the photos as soon as I can.... unless somebody else puts some up in the meantime...
