you may want to go to the feed store and grab some hessian bags to cover the dash area, before you to get to fiber glassing, secure the bag with a couple of screws so as they are not falling down all the time "" you can fill the screw holes later "".
they usually give the bags away so you can grab as many as you want , they also come in handy for filling with scrap foam , wood and all the other stuff you cut out.
all good fun the stripping out , in fact i kind of enjoy the destruction process
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keep the PPc on at all times even when clearing up!.