contact Ross

About work, about Thor, about life. 

Boulder, CO 80302

(720) 772-8078

Boulder, CO's Expert in Custom Woodworking

Whether you need custom cabinets built and installed in your home, a custom camper van conversion build out, or a new deck in Boulder CO, Rossmonster Designs' custom woodwork will leave you breathless. See photos and information here.

2018 ProMaster 159"

Custom built high quality Class B adventure vans and motorhomes for sale - built by the woodworkers and engineers at Rossmönster Design.

2018 Ram ProMaster 2500 High Roof

Built to be the ultimate luxury vehicle for off-grid adventures

Seats: 4 |  Sleeps: 4 |  159" Wheelbase  |  SOLD

High resolution photos shown at bottom of page

This custom 2018 Ram Promaster 2500 adventure van was converted brand new, product tested, cleaned up and parked for pictures - the interior build on this van is brand new and has never been lived in. Van conversion professionally done by Rossmönster Vans, LLC based in Longmont, Colorado. Equipped with full off-grid electrical system, propane heater, full kitchen with 2 burner stove, fridge, sink and faucet; ready for you to take on your next winter adventure. 

Key Features:

  • 235 watt solar panel with 340 amp hour Super Cycle AGM battery bank
  • Propane heater with remote temperature control
  • Custom Rossmönster Design walnut cabinets
  • Double layered insulation with noise reduction, vapor barrier and radiant barrier & denim insulation in all cavities
  • Interior LED light system with dimmer control


  • Full size memory foam bed
  • Four 110V outlets
  • LED lighting under cabinets
  • 4 LED overhead lights on dimmer control
  • Off-grid solar control and monitoring
  • 6' 3" ceilings provide comfortable movement throughout the cabin


  • Dometic sink paired with SHURFLO water pump
  • Two burner propane stove top with electric ignition
  • Dometic fridge with propane & electric power options
  • 10 gallon fresh water tank
  • 10 gallon grey water tank
  • Under cabinet lights in kitchen


  • 2.4 gallon propane tank with sleek exterior mount
  • Exterior ladder for roof access
  • RoofNest Sparrow Eye sleeps two comfortably on the roof


  • Towing capacity up to 5,100 lbs
  • Interior standing height: 75 inches
  • Exterior height: 9'
  • 5.0 inch touchscreen display with navigation & backup camera
  • 2 keys included
  • Current odometer: 9 miles
  • Tires: Nexen Roadian CT8HL LT 225/75R16

Contact us about this van

Name *