Welcome to BYC - go to the Social section, "Where am I? Where are you!' and post on the RI, Ct, and Mass threads. HinckJcpoultry in NE Pennsylvania has nice lavender Orpingtons.
a few people have been searching for Lavender orps lately. Once you have 20 posts you can participate in the buy,sell,trade forum - or even put up a "wanted to buy," ad.
You might also try putting "Lavender orpingtons" in the search box and see what pops up.
Welcome to BYC! Glad you decided to join our flock. Lavender Orpingtons are beautiful birds as well as being calm and gentle, and good layers of large, brown eggs. Please feel free to ask any questions you may have. We are here to help in any way we can. Good luck in getting your Lavender Orpingtons.