M_Boats: Towing Vehicle Question

I am a new owner of a M15 and have not yet launched her (Michigan). My tow vehicle is a Chevrolet full-size pick up which is only two wheel drive. I am having some worries as I look at my various lake launch ramps, some of which are rather steep. These trucks are nortoriously light in the rear end and I am concerned as to whether I may find myself sitting and spinning at launch and retrieve time. I cannot afford a 4WD truck and thus am wondering what options other use (other than a tow truck) to launch and retrieve their Monty's if they are in my same shoes tow vehicle wise. My trailer does have a short (3-4 foot) tongue extension. Thanks. *Jeff+* Molōn labe!