I've had GRP mouldings which were fine from Metcalf, others which were bad enough to return for a refund. I've not seen any models of MV Graemsey myself, perhaps it's worth getting hold of the old mag article? I remember the build article, can't remember anything other than usual about working with GRP and cleaning up white metal parts. If you want to see model builds it seems you find them on google as TSDV (made-up acronym?), if you want to see pics of the real thing as a reference perhaps use the more normal MV term.
Rich