I know your pain. I installed the new hi torque starter in my SeaRay last weekend. Mine is a V8 chevy. About a 6" little tunnel between the floor and the manifold to get the starter, one arm to hold it up, and the other arm to try to get the bolts started. I never knew I knew that many bad words, and my arms look like road rash from a motorcycle crash from rubbing the raw fiberglass edge of the floor. Ain’t this boating thing a relaxing pass time?