The Build-A-Truck feature from GapVax enables website visitors (www.gapvax.com) to design their own equipment by choosing options that best meet their needs. Selecting Municipality or Contractor, users can design an MC Series combination jet/vac or HV Series wet/dry vacuum truck. Hydroexcavator options include debris and water tank sizes, debris tank material, duct work and cyclone material, interior debris tank coating, liquid load indicator, cold weather package, off-load, sound, boom and lighting options. Other options include toolbox, chassis, gauges and electronics. When finished, users can submit their design and receive a formal proposal for their truck.