hi guys after a couple of years of pondering this idea i decided to bite the bullet and do it
i fiberglassed a commodore one before but that was easy so here is the write up for this mod
step 1 find someone who will let you chop the roof of thier datsun (thanks hyflo)
![Open in new window](http://i1223.photobucket.com/albums/dd506/stichesandsounds/020-1_zpsfe762095.jpg)
step 2 fill the roof cut with expanda foam
![Open in new window](http://i1223.photobucket.com/albums/dd506/stichesandsounds/022-1_zps5d10ddaa.jpg)
![Open in new window](http://i1223.photobucket.com/albums/dd506/stichesandsounds/024-1_zps89d5f619.jpg)
step 3 carve and sand the foam untill you get the desired shape
![Open in new window](http://i1223.photobucket.com/albums/dd506/stichesandsounds/025-2_zps7c07abd0.jpg)
step 4 glue aluminium foil to foam use 4 of 5 layers overlaping as this will help breaking it out of the mould
![Open in new window](http://i1223.photobucket.com/albums/dd506/stichesandsounds/028-3_zps56b1f187.jpg)
step 5 lay choped strand mat over foil
![Open in new window](http://i1223.photobucket.com/albums/dd506/stichesandsounds/034-1_zps561fdf57.jpg)
step 6 soak the matting with laminating resin and wait 4 the magic to happen
depending on how much hardener you use you may be able to remove from the mould in 2 or 3 hours i trim the edges at this stage and leave it in the mould overnight
step 7 using wedges and compressed air remove the item from the mould
![Open in new window](http://i1223.photobucket.com/albums/dd506/stichesandsounds/037_zps1db70b5e.jpg)
step 8 sand the new fiberglass roof smooth it will need more sanding to paint than it will to trim in leather