This 2017 Promaster 159 originally came to us in August 2017 for phase 1, which was insulation and rough walls, then phase 2, a complete RV build! We gave it a custom interior, full electrical with 2 AGM batteries, 3000 watt inverter system, charging system, 30 amp shore power and 200 watt solar. She opted for for Maxx Air roof vent fan only. We installed a custom kitchen with full pressure water system, cassette toilet in private bath, 3 windows, running boards, awning, upper cabinetry, couches that make a bed and a half dinette.