You might be able to reuse the existing mounting blocks? A pair of pliers will persuade them to come off, clean them up and re bond. One of mine came off and I used superglue gell worked a treat. There is some flex in the cover as I have refitted mine so that it married up with the two side black honeycomb sections, so I reckon that when you tighten down on the fixing blocks it will pull it into shape and give the slight curve needed. If not there are parts of the fake engine cover that you can file down/cut off to give you more distance I know cos I did it to mine before I had the V6 fitted and I reworked a friends on his 360 and he has the 1.8 and no problems at all.