www.threeriversmarine.com has good prices and are a good company to deal with.
If you are dropping that kind of money, take a good look at Humminbirds Side Imaging units before you decide. It is a whole nother world. You can search 400' of water for crappie structure at one time. It really makes a difference. Color. GPS. Check it out.
PanMan on the VA board has both. Check with him.
Dayton