Parrot, those cushions are gonna do the trick for your cuddy!!...as far as sealing, my plan was to use a couple of coats of a good quality sealer on all, then paint...never did find a bed-liner product I liked that was affordable, but you probably have better access to stuff up there...
All that said, if you REALLY want a permanent, impregnable seal, glass will be the way to go...
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'74 V-20/ BF 150
'95 V-21/ BF 150
'84 V-20/ 200 2.4 Merc
'87 V-20/'18 F150 Yamaha
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