There are cheaper solutions as well used called airwells. think along lines of a buried grid where warm wet air is pulled in and down about 12 feet , where it forms condensate on the colder pipe grid and drips into a cistern and a tall exit pipe painted black keeps the cycle in motion through convection. then ya just use a hand or solar pump to bring the water up from the cistern / tank.....
Cheaper , as no moving parts shy of the pump to bring it to the surface.
here is the PDF file on Willie watermakers.....
http://www.willienelsonswaterfromair.com/products.pdf