Got a 17' aluminum Blue Fin that has the old live well holes in the back, below the waterline. Looking for suggestions on how to seal them off, in the refurb. it won't have a permanent live well installed. Will a piece of aluminum plate, inside and out with sealer on it, bolted thru be sufficient? Been looking around for some type fitting that would just screw in, not having much luck. Holes are 1-1/8" and 1" diameter.