The amount of head is what you will pay for in power to supply the water that you need. I have less then half that and when I was looking into doing the same thing, I kept going back to waterfall pumps for koi ponds and that type of application. Some use allot less power then others, but it's been about three years since I looked into them, but I found some of the garden sites that specialize in water gardens to have allot of reviews on the different brands.
Good luck,
Eddie
