the comb size and color, and the flowing of the feathers on his topknot and his tail to me indicate a rooster, you should either get an egg or a crow at that age after they feel more comfortable.
Yep, cockerel... Comb, wattles, he has "streamers", cockerel feathers that flow from the top of the crest towards his back; the thicker feathering around his hackles is where those streamers head to
And he holds his head up very high; a rooster trait.
.....my brother and I are really happy he is....he stared crowing at the middle of night yesterday which was weird ...he's crow sounds funny ...can't wait to start breeding him