It's real important that you be present at the survey. You can gauge the surveyor's attitude and expertise. You'll learn about your prospective new boat too. It's not just a matter of "trusting" the dealer, it's a matter of knowing as much as can about a major investment.
1987 CS 36 Merlin "Kyrie"
"They drove a dump truck full of money up to my house. I'm not made of stone!" -Krusty the Clown