If you want to do this with a solar system, it,s going to require a solar panel, controller, one or two batteries and a 12volt pump, like they use in RV,s.
Shurflo, offers quite a few pumps , one being 1/2" in and outlet, 168 gallon per hour and capable of 40psi --Lifts water from about 12'and will draw 4 amps...$60 to $70 --the solar system, about $300 -- my best guess !!
You might be able to fudge a little on the solar panel, but I would use a 50 watt -- that gives you about 4 amps recovery rate, with maybe one battery!!
Possiable to just run on the panel, but i wouldn,t count on it !!
If you haven,t bought that 500 gallon tank, you might consider the 1000, or even 1500 -- I just bought one two years ago at a Co-Op, and it was about$450 and as I recall, the 500 was only about $100 cheeper !! This is the heavy black nylon type, and has served me well !!
If that all ,has changed your mind about solar -- I invested in a Honda powered, portable pump, and a 220 gallon tank that fits in the back of my truck..
I haul water from a spring, about a half mile from my cabin, about 6 or seven trips fills up that 1500 gallon tank, and dosen,t take but a few hours, as that little pump, puts out 1980 gallons an hour !! It,s only 15 pounds, four cycle and comes with 15' of suction hose and a strainer -- I use a garden hose on the discharge end, and fill that 220 gallon tank in my truck, in about 15 minutes !!
The cost of the pump was $300, and I see it advertised in the Northern tool catalog, for $359 ---(#109409 - 1505) This may seem expensive, but will fill that 500, gallon tank in minutes, and the 1500, in about an hour and this is a really good pump!!
If you go the solar route -- make it difficult to reach that panel as they sometimes dissapear !! Best of luck to you, it,s all pretty easy -- feel free to email -- Bill H.......