i found these plans you can purchase, by doing a simple search online

http://www.woodprojects.com/UB-891.htm

http://www.missouriwaterwheels.com/cgi-bin/shopper.cgi?search=action&category=PLZ0&keywords=all&template=PDGTemplates/FullNav/Storebuilder_Type2.html

http://members.shaw.ca/waterwheelman/plans.htm

http://www.kenswaterwheel.com/waterwheelplanterkit.html

a free one
http://www.runnerduck.com/waterwheel.htm

hope these help

thank you we'll take a look

We build waterwheels and sell the plans. The wheels are about 2ft in diameter. The plans are on a CD and contain about 50 or more pictures of completed waterwheels. The plans show extensive pictures of how to build 5 different models. We sell the plans for $20 which includes shipping. The waterwheels can be built for about $100-125. All materials are available from any lumber yard or Home Depot or Lowes, etc. There are several pump options, we sell a non submersable pump for $25. We will email you some pictures if you like.
The Waterwheel People