Try any local marinas. On Rice lake there is Hastings Marine and Harris Boat Works. I'm sure with the state of the current economy, most places will finance for you. They just want a sale.
how about bass pro shops? hard to match the price of a Nitro, or look state side for a great price on a used bass boat. Stay away from southern states as they are very hard on their equipment
Ive had a nitro since 08 and its served me well. Upgraded the electronics on it, trolling motor and power pole and still not as expensive as other brands.