shape and then coat with a layer of filler
then a layer of grp and fill and sand and then it should be next christmas and I will have more time to finish it off !!!
I'd suggest this for filling the surface in the foam
http://www.easycompo...oat-primer.aspx
and then this for the glossy top coat
http://www.easycompo...t-hi-gloss.aspx
You should be able to get similar stuff for cheaper from somewhere like eastcoast but the easy composites stuff is top notch quality. It will also be easier than adding grp to the foam too. Have a watch of their you tube tutorial.