I have a Mac mini 2012 and would like to use it in a RV and on the mini I wanna basically store movies on it and stream it to a Apple TV now I have no internet in my RV, now I do know I can buy a router and use that as a lan hub right? because a lot of times im on the road or in a park and thinking"I really want to watch a movie"but the park im at has no Wifi and I dont have a dvd of the movie