How big is the crowd? Potstickers are tricky because there are so many areas
where they can go bad, especially when serving a large crowd. If you fry them, they don't stay crisp long, and if you boil them, they go gummy quickly. Not to mention the fact that they are very labor intensive to fill and wrap--especially for a crowd.
Here's a thought...For an informal party, my friend brings the prepared filling to parties and teaches people how to make their own while everyone is having drinks.