Try em all
First of all it depends on whether you're regular or goofy and how well you ride switch. It also depends on if they have kickers and the placement. The cable will run counterclockwise and the air tricks (off the water) will be easier goofy.
You should be able to duplicate your tricks off the kickers (if they have them). But placement will affect what you can do.
You didn't list a backroll. Maybe that's an easy trick and you overlooked it. A backroll or a raley off the water will be a good one to try. A lot of guys land their raleys switch right off the bat anyway so the krypt is almost a freebie if you do the raley.
Scarecrows are incredibly easy off a kicker. Probably the easiest invert at the park. However, is depends if a kicker is placed where you can hit it toeside.
Have fun, and don't forget your helmet.