I'm not an expert and I know you mentioned you're not necessarily interested in showing them, but that picture of the BCMs seemed to show a lot of copper in the hen. Have you tried looking at the Marans thread on this site? Lots of those people offer birds and eggs. Also, try Craigslist. I ended up hatching eggs from Maryland's "peachick" and Florida's "Greenfire Farms," for my Marans. My first three birds are from a different hatchery but once I started to get into chickens, I decided to order hatching eggs from breeders directly and I am really pleased with breeders' birds. It wasn't hard to find homes for the cockerels even in Los Angeles, and I even got paid for the males. I'm trying to find homes for 2 of my 3 hatchery hens. My chickens are just for fun but it's nice to get hens that look wonderful and lay beautifully dark eggs.