Funny thing-I had an axle break on me yesterday coming home with my skiff. I was sitting on the side of the highway thinking "what are the chances?"
Last year I decided to pony up the extra 15 bucks for trailer care with my seatow and they paid for a $250 tow yesterday-guy put my 18 foot boat and trailer up on a flatbed just like you.
Good luck with the new boat! And don't worry about the $$-the boat is gonna suck you dry anyway-it's what they do