Although they might not be what you hoped for, or pure Ayam Cimani, I wouldn't discount them yet. Personally I think they are beautiful. Just to let you know in regards to Ayam Cimani, I just paid $150 for a 3.5 moth old pair that where originally priced at $100/ea. If you go to GFF I think they are $299-399. That's my cockerel in my avatar. He still needs a name...
Here even the culls with horrible red leakage are going for $40+. There's also guy who sells and advertises AC crosses and pulls a few more dollars per bird than his regular birds just because it's got AC in them. They are not even black feathered either.
This is my hen with and w/o flash. I'm not an authority on AC's, but to me, Raven and Olive look a lot like her.
A funny tidbit, my hen is 3/4 Raven bloodline. I found this thread searching for AC's, so when I saw the big word "Raven" I eyes shot open. "oh, it's her name. Gotcha!"
That being said, colored eggs are pretty cool. EE's are a strong consideration for our next batch of chickens.