I wanted the bodywork to fit closely to the fuel filler cap, so made a new insert for the cap. I don't know much about cars or fibreglass, but woodwork I can understand, so the buck was a woodturning with some lumps screwed on.
http://www.madabout-kitcars.com/foru...pictureid=1711
Then a thin moulded shell over it.
http://www.madabout-kitcars.com/foru...pictureid=1712
Then I built up the thickness with layers of CSM on the inside, over the whole area, hoping that that way the new part was well integrated with the old.
http://www.madabout-kitcars.com/foru...pictureid=1713
http://www.madabout-kitcars.com/foru...pictureid=1714