Canoe Trolling Motor Mount

I get a trolling motor for my boat soon and NEED THIS quick response! PLEASE HELP! I need plans to build support for the canoe so I can have an engine. Something like that.:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300388395483&rvr_id=&crlp=1_263602_263622&UA=WVI7&GUID=857c5c711270a0b582f73947ff910080&itemid=300388395483&ff4=263602_263622

I need plans! THANK YOU SOO MUCH! EASY TEN PTS.

Oh check iStockphoto for some media, then to reverse engineer it.

- JJ