I would like to make a copy of my dash area (manufacturer does not make kits anymore and has not done for quite a while). I was wondering what would be the best material to use? I cannot use gel coat etc as this wil ruin the current dash (is covered in vinyl). Could I use some kind of rubber/silicone and then make a grp mould from this? Has anyone tried this???? Basically I want to use a material that will not damage the current dash area (I have seen people using some kind of rubber/silicone material to make a copy of someones arse on one of these bizarre cable tv shows - was wondering what type of material that is????)