Have a 79 lund 16ft aluminium basic tiller boat , on the bottom of the boat left side the bunker is pushing up the floor between 2nd and 3rd seats there are 2 ribs between the seats that are bent up . The stringers look ok from under boat but hard to tell if they are bent cause bunker in the way. Can the ribs be pushed down and strengthened . What would be the best way to do it ?