Pretty much. The OP's chosen jug is made for just that sort of use, with it's bottom spigot. Just as easy to use an Aquatainer or Coleman / Rubbermaid drink cooler.
Just an FYI the spigot part of the Aquatainer (blue on the left) cap unthreads and reverses for storage like seen here:http://www.walmart.com/ip/7-gallon-Water-Container-With-Spigot/872426. that hole also happens to be threaded using standard pipe threads. I used one of those to add a water tank to my popup that the previous owner had deleted. A quick trip to the hardware store netted me a single adapter down to the correct barbed end. It already has a vent and takes a beating. It has worked well for a few seasons of abuse.
Amusingly enough, the other end of the line is attached to a faucet that looks exactly like this:
also the one on the left.You mean an RV hand pump like one of these? http://www.pplmotorhomes.com/parts/rv-pumps-water/hand-pump-faucet.htm