Maybe a high gloss coloured wrap over well sealed ply for the sides.
Found this site here in the UK where the prices for vinyl for DIY application seem very reasonable
http://www.mdpsupplies.co.uk/vehiclewrappingvws1.asp
eg 5' wide just over £9 a linear meter. So even a 3m long tear: £27 a side. (approx $43).
With the cost of marine paint & other exterior coatings, maybe an idea.
They even do a SILVER for that faux aluminium look at a fraction of the cost.
Seems to good to be true.... gotta be a catch somewhere
Mark (& Cindi) 
