Siphon would be super-easy!

Of course flow rate is going to be based on pipe diameter and change in elevation from surface of water to surface of water. I would try and get a bunch of 2" black water line and fittings (or larger if possible). Also some fittings with a Venturi pump in order to use a hose to start the siphon effect (vacuum out the air). It would be tough to do by sucking on the pipe with your mouth.

http://www.aquamerik.com/catalogue/produits.cgi?category=pompes_asuccion&lg=eng

Keep in mind you probably don't have enough pressure to be able to afford aerating the water, so the water will come out oxygen poor.

Once it proves out, you can bury the pipe and make it permanent.