yellowbelly to normal is not an attractive breeding. you would only get yellowbellys and normals. and thats exactly the kind of stuff the market is over-saturated with. prices for single-gene basic morphs that do not look impressive on their own have tanked and are getting closer and closer to the price of normals, and yellowbelly is one of these genes that shines in combos (ivory, superstripe, highway, puma) but on its own its not impressive at all.

that being said, of course you could try. age and weight for both are totally fine for breeding. chances that it works out are good. you just need an incubator and a hatchling rack, and the baby BPs you hatch wont be of much help to recoup that investment.