Hello and welcome to FF ! Your frog is still young and should be 3.5-4 in. SVL before it starts to develop adult traits Can find answers to a few of your questions in here: Frog Forum - Pacman and Horned Frogs - Ceratophrys - Care and Breeding.

IMO, breeding Pacman frogs is very challenging even for an experienced keeper and not a "weekend warrior" type project. The linked article has a breeding section that goes briefly over the subject, so it should help getting an idea of what is involved.

Fantasy frogs (C. cranwelli X C. cornuta) are the only common viable sterile hybrid Pacmans in market today. Other Pacman hybrids have been produced; but the low numbers of frogs making it to sellable size and still lower survival to adult rates, keep them off the market.

IRT different morphs genealogy; the breeders only share that intellectual property with very close associates, if at all. If interested to learn more about Pacman's and their care, recommend read Philippe de Vosjoli book titled "Horned Frogs plus Budgett's Frogs."