Ive done a 78 & 87, both only had centre setup, I used EB Falcon, early Commadore and some rice burner bits, one of them, I think the Falcon had corrugated type tube, this was great to loop around the steering (87 I think required a spec flattened tube to fit) etc. Any that did not quite fit got gaffa/duct tape, heavy cardboard, heavy plastic and fibergrlass, finished with flat black paint. Unless you were a fanatic, you would not know the difference, all ducts and outlets worked fine. Haveing said that, in v 87, when the cover pads in/under the foot wells went in last, their holes for foot air did not line up exactly. I visited one of those U Pullit type wreckers (Sunnyolt Rd) you can wander and pick and choose esp if you have pics of what you need. Good luck.