200ft Winch

[H2obrien]

Does anyone have any suggestions for an inexpensive winch with about 200ft of cable? The load would only be about 400-600lbs. I am trying to build a winch and pulley system to pull thermal blankets (pool covers) onto an olympic sized outdoor pool. Note:
There are already motors to reel them back up so I would only need to pull them one direction
I would prefer a 120v system.

Thank you for your help.

 

[H2obrien]

Here is a picture of the blue pool covers wound up. Thanks again.