Hi 340cudaman,
She has a good scale look going on there - that trailer looks impressive also. One of my favorite boats is the 56" apache. You have a bit of a challenge with plastic universals - sounds like it will always be a weak link for you. I would certainly keep a spare handy to avoid your day ending early with a failure.
Loudonville - I went to Siena some time back
I would give Chris Hoffman a try for some props. He might have something that small in a counter rotating setup. He is well known and regarded for prop experience (and he is a fellow NY'er). His e-mail is Dasboata @aol.com