Rat Terrier Male Puppy

We are looking for a new home for a 15-week-old male rat terrier. He's had his first round of shots and is almost completely potty trained. We only crate him when we leave the house because he dislikes it. He gets along well with our children (ages 2 to 11), as well as our two large dogs (male and female) and our female cat. He doesn't bark very often. He's a velcro puppy with the most adorable personality. He will come with his vaccination record, a bag of puppy food, and some toys and treats. We are asking $350 for rehoming.