Who are you playing, Emily? Are you Polly Garter or one of the Mrs Dai Breads? Are you guys attempting Welsh accents or is Llaregub in New York State? I grew up not too far from Laugharne (between it and Swansea), and the play means a lot to me. The version I'm most familiar with is the BBC radio version with Richard Burton, but I've seen it on stage a few times. It's done in Welsh annually (I believe) in South Wales, and my mother used to go every year. She thought the translation was really good, and preserved the characters beautifully. Good luck with your production - I wish I could see it.
Cheers
Ray