W have a May 12-19th trip, also. I have been monitoring everything. We are willing to take the $100-$200 loss if necessary. I am less nervous today than I was this past week. That said, we are already using sanitizer, Clorox wipes, etc. We are driving, so we don't have to worry about airline issues. We will use our car to drive while on property so we can avoid the overcrowded busses to and from the park. We will wipe down everything we use, wash hands, etc.
One suggestion-- if you go, remember you (the adult) might want to use the bathrooms in the baby changing stations when you change the baby. Less traffic usually goes through there during the course of the day when compared with the general ones. Also, in the past, when we travelled with our little one, we made sure to bring her combo stroller so she could ride at the top and be changed in the bottom. That way, we never had to place her on the hard plastic baby changing table in the restroom.