My roo is a gentleman also, very sweet boy. At least you have a plan, that's good, especially if you're going to start breeding. I try and sell them as pairs or trios, otherwise I clearly state straight run if they want baby chicks. I had 1 instance where I just had 2 cockerels left and I gave...
Sometimes, it's not always that way, that's why we say wait and post pics in a couple more weeks. Some boys mature more slowly, so then again, we'll have a better idea in a couple weeks. I had a blue orp chick this year that had comb showing within a week but then it just stopped developing and...
Nothing is set in stone, but if they were mine, I'd be thinking the first 3 are cockerels and the last 2 pullets. Update with new pics in a couple weeks.
They cannot be feather sexed, so just throw that out the window, lol. They are slow to mature and can take a while before you're sure who's who. I hatched a batch of LO this year and wasn't positive of their sex until 8 weeks of age. Post some pics, maybe you've got a fast-maturing cockerel...