A friend who is pretty good at sexing at a day old told is we have 1 cockerel maybe 2, the others are pullets. So if nothing else the pullets can go in the pen for eggs for breakfast.
I'm curious as to how your friend sexed them. Are they trained to vent sex chicks? Many people are under the impression that chicks can be wing sexed and sadly that is not the case for the vast majority as it is a sex linked trait that needs to be specifically cross bred for.
I hate to burst your bubble but I see an awful lot of red combs and wattles for 7 week old chicks.