Hi Forby,
Have a look at the Exmoor trim website, they have a few vids I think 88 is one of them, which I used to try and see where the fittings go, for the actual fitting I put the tilt on the back and placed the brackets / clips where the rope / straps needed them. Agree with above, paracord is the way to go, just remember if you undo it the paracord may spring back into the canvas ( if it is the same as my 90 tilt, ) so fit a couple of washers or sumething to stop this.