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My 22 Revenge is a 1990. My well appears to be a different shape from yours. However on the port side Whaler formed a "knotch" in the mold to facilitate a discharge hose. You could always drill a hole and then install a drain tube to seal the hull from water intrusion. Then pass your discharge hose through the tube. Seems to me the easiest approach would be to remove the extra fuel line and use that space for your bildge pump discharge.

Good luck, Norm