Turns out it is a piece of cake getting boats into mx. Best advice i received was the spare tires, its tough to get trailer tires in mexico. You all that said not to go need to stop listening to American media. Go hang out in LA, then go to mexico, you'll see which is more dangerous. We didn't get our heads cut off with a chainsaw like the boarder patrol agent said, and we met nothing but great people.
We just finished a 400 mile voyage from puerto vallarta to Zihuatanejo. Amazing experience. took us two months with lots of sailing, surfing and camping. Hobies are amazing boats!