I wouldn't eat any of the food due to hechsher.
Seems like the best game plan is to come with two guests, order a bottle of Yarden Cabernet or Galil Yiron, ask them to bring the bottle unopened and take it with you. You can throw in a cocktail to reach the 300 shekel.
If your two friends/family members also have PP, you can take turns being the account holder and the two guests so that at the end you each consumed cocktail and got a nice bottle of wine to go.