The ram-pump is a wonderful device when used in its design application. The problem for your situation is that a ram-pump passes more water by than it pumps up to a higher level. So, your well would still fill up.
How much volume of flow passes through your property in gallons-per-minute? (drop a floating ball, and measure how far it travels in 20 seconds. Then measure the average cross-section of the stream. Perform math...I think it involves a square pie.
And how much drop do you have from the high end of your property to the low end?
How far apart are the high and low ends of your property?
What voltage would you like to make (if possible)?