There's always someone who will take the cockerels
Be it to let them run... or to eat them later aha. Those were beautiful little roos too! I had one that looked like your 1-2 boys and oh my was he the best rooster I ever had. Never had one as beautiful since then either.
There is about a 10% chance of a getting an incorrectly sexed chick no matter what breed (minus the hybrids with different colored chicks for different genders like ISA browns and Sex links). Even Hatcheries mess up from time to time. However, it's a little more tricky at feed stores, specifically bigger ones like TS and rural king because there are people who don't really know what they're doing and just toss them in. Then they end up mislabeling them and instead of the pullet bin you're in the straight run bin. That and when they have two groups of the same breed they'll toss the straight run and pullets in together because they don't really know the difference. That and you have everyone and their 5 kids picking them up and dropping them into other brooders, mixing them all up. TS prevents this part but they tend to mis mark them all the time. ( I refuse to go to TS because I can't see and pick out my own chicks. They always used to give me the weak, listless ones who always died within hours). Your best bet is to take a phone with you when you go if you're not sure what the breed is and look up the chicks to see if that's what they are. My cousin bought 3 "blue andalusians" because the workers said that's what they were, but when she sent me a picture after she got home I told her they scammed them and that they were barred rocks (which I figured out were actually Dominique's about a few weeks later when I saw them in person) and that she had a production red rooster in the mix. This time around she got 2 cockerel gold laced wyandottes and I've ended up with a buff, an olive egger, and a speckled Sussex who were all sexed as pullets but are really turning out to not be aha. That's just the chick waiting game and sometimes you just get unlucky.
You will probably be able to add the chicks fairly easily. Just wait until they're big enough to defend themselves, and with them all being fairly young there will be some pecking and then they'll get along. Just have to introduce them slowly. I do it every year and have had good luck adding them in each time.

There is about a 10% chance of a getting an incorrectly sexed chick no matter what breed (minus the hybrids with different colored chicks for different genders like ISA browns and Sex links). Even Hatcheries mess up from time to time. However, it's a little more tricky at feed stores, specifically bigger ones like TS and rural king because there are people who don't really know what they're doing and just toss them in. Then they end up mislabeling them and instead of the pullet bin you're in the straight run bin. That and when they have two groups of the same breed they'll toss the straight run and pullets in together because they don't really know the difference. That and you have everyone and their 5 kids picking them up and dropping them into other brooders, mixing them all up. TS prevents this part but they tend to mis mark them all the time. ( I refuse to go to TS because I can't see and pick out my own chicks. They always used to give me the weak, listless ones who always died within hours). Your best bet is to take a phone with you when you go if you're not sure what the breed is and look up the chicks to see if that's what they are. My cousin bought 3 "blue andalusians" because the workers said that's what they were, but when she sent me a picture after she got home I told her they scammed them and that they were barred rocks (which I figured out were actually Dominique's about a few weeks later when I saw them in person) and that she had a production red rooster in the mix. This time around she got 2 cockerel gold laced wyandottes and I've ended up with a buff, an olive egger, and a speckled Sussex who were all sexed as pullets but are really turning out to not be aha. That's just the chick waiting game and sometimes you just get unlucky.
You will probably be able to add the chicks fairly easily. Just wait until they're big enough to defend themselves, and with them all being fairly young there will be some pecking and then they'll get along. Just have to introduce them slowly. I do it every year and have had good luck adding them in each time.