I would post on craigslist that you are looking for point of lay pullets (17-24 weeks) in the breeds you would like.
You could also see if there are any small animal auctions. Visit with the feed store and find chicken farmers in the area. Those aren't really "rare" breeds, you should be able to locate them. You could also post in the Chicken for sale spot here on BYC that you need these breeds and see if anyone is near you...
The problem with Meyer's for example is that the shipping is incredibly high! I think it was like $13/ bird for Red Stars, but the shipping was $15...and you had to order a certain number.
It's hard to wait the 5 months for a layer to develop. My chicks from September are now starting to lay. It was a LONG wait!
Good luck!