The biggest problem with bringing something like the guards in is not having them damaged. Doubling them would be a pretty sensible way of figuring out what they'll cost. The prices for importing parts seem to fluctuate a fair bit. To be honest if I was you I'd get someone to pump the stock guards. FRP quarters are for show and race cars only IMO.. People sit on front 1/4 (not saying they should), and they'd cop a bit of abuse I'd imagine...