After Ashley Trebitowski spotted a Craigslist ad for a 1999 Bluebird school bus being sold in Ennis, Texas, for $4,400, she and her husband, Brandon, hopped on a flight to check out the vehicle and drove it back to their home in New Mexico. Over the next few months, the couple overhauled the bus for their family of five with a $30,000 DIY renovation.