Mike:
While you're looking at the kit plans, you might also want to dig into a little backgroung of the boat. JFK got all of the "ink" but that's not where the history was made.
There are (2) links you should look into:
WWW.FLOATINGDRYDOCK.COM
WWW.PT-BOAT.COM (John Drain, in Australia, is SERIOUSLY into PT modeling)
You might also want to consider trimming the boat as "late war" instead of the initial versions, which used a civil war cannon (black powder) to luanch WW1 torpedos which were 70 % defective.
And, on all of the photos I have, and have seen, no one ever deployed the "life lines" on the front of the boat.
I'm on my third Dumas kit. One 48" which is just too big for an apartment dweller. and two of the 33" hull kits. The 33" are being trimmed as late war, with "roll off" torpedos, Three cannons, and rocket luunchers.
Good luck with your kit, and WATCH OUT FOR THE SPLINTERS ! (Dumas seems to be exceptionally good at those)

Stay in touch.
Richard (in Cincinnati, Oh)