Running water?

Hi hi! I need some help! I have filibuster Rhymes' used cars and RV interior and I was wondering. Can I build a counter and a sink then have the sink to some form of water supply? I only found a large haul truck and not an RV but I did see there were Sinks in RVs. Is there a way to get running water in there or am I cooked for my planned field trip?