Welcome to BYC, I'd be leary of swap meets etc. The seller is here today and gone tomorrow. You are likely to find you bought birds with health problems, defects or stealth cockerels masquerading as pullets. Much better to buy from established reputable sellers/breeders.
Welcome to BYC and good luck with whatever you decide. I am not in the US and am not sure about local breeders, but I am sure someone will be able to help.