They've been glassed before; thought this thing was a real floater, anyway...

Maybe search the archives for glassing articles. There was one out there on another webpage by Terry Holsten I think, showing how to use polyester peel ply (really a polyester cloth from Walmart) to cover over the resined part and lifting it once cured to take out the extra resin and leaving a sand-able surface. Just like vacuum bagging but without the vacuum bag. Looked really, really effective and seemed to leave a very light part/plane not much heavier than film.

Do it right with patience and the right materials and you won't have a problem.