Yes, you can convert a van into a campervan. You may not need any special mechanic skills to make the conversion, but you may need help with the interior transformation. It is recommended that you hire a professional to make these conversions in order to provide a safe and street-legal Class B RV. Hiring a contractor, electrician and plumber should also be considered for inserting any showers, toilets, sinks, appliances, beds, and power supply units.