"The cost for a 10' x 25' x 6" thick 3000 PSI reinforced concrete ramp would be approximately $ 4,293.00. After the ramp is constructed on the shoreline and concrete has set up ( usually 7 days ) we would push the ramp into place using a Bull Dozer".
This is what we typically do for the small boat ramps you describe. Depending on the types of boats you may want to launch, you might consider some large rock >2" dumped to form a rough ramp.
