Sarah: Sorry, you must have the wrong number http://bh-studios.com/about-bh-studios cipralex magyaroldalak Because it's up to owners how much they want to commit to their business, the amount needed to start and operate a mobile shop varies, but typically the shop vehicle is the biggest expense. "From what we have seen, the average start-up costs of a mobile boutique are around $20,000," Steffe says. "With $20,000 out the door, you can pretty much have everything you want." The average price for a bare trailer can start as low as $8,000, and owners can spend $100,000 and up building it out and adding amenities. Business and retail permits are factored into this cost too, and vary based on location.