DIY conversions typically range from $5,000-$15,000 for basic builds to $20,000-$40,000 for comprehensive off-grid setups (excluding the van). Professional conversions start around $30,000 and can exceed $150,000 for luxury builds. Major cost factors include electrical systems (25-30% of budget), insulation/walls (15%), kitchen components (15%), and bathroom facilities (10-20% if included).
