One bonded pair of American Budgies (Parakeets) with cage

This bonded pair of budgies is a lot of fun, but I have too many birds to take care of them all. They are adults, but am unsure of their exact ages. The blue is a female and the green is a male. Both are very active and playful; the male is more friendly and chatty than the female, but the female loves to play with her beak and forage. This is the cage they came with; It's very heavy duty, but has one wheel that needs to be screwed in better or it can fall off when the cage is being rolled. I will include the perches you see in the cage and a feeder and waterer.