Greg, I haven't built one but from what I saw at the shop talking to folks it looks like you could be anywhere from 60-100hrs to go, finishing times are to a large extent a function of your skill and efficiency, sanding drips in other words eats up time. With the epoxy just make sure to wipe and sand before re-coating, because of all the exposed end grain plywood be sure to not sand through any finish coats of epoxy since the end grain can act like a sponge to standing water.

: Greetings-I'm about to build an Annapolis wherry for a friend's sister; she's
: gotten as far as stitching the hull together. This is a paying gig, and I
: need to know how long it should take to finish it from this point, minus
: epoxy curing time, so I can accurately decide what to charge. Also, I have
: some leftover System Three w/medium hardener left over from my Pygmy; I
: figure I can save some curing time if I can use this for gluing and
: filleting. Is it compatible with MAS? Thanks, Greg Root