jeb67 just went thru this same issue you are having.... car # 273 rusted metal trunk lid frame... Only one way to do it correctly.... Split the frame from the fiberglass and we used a NOS trunk lid and split the skin off the frame... done exactly as it was done and rebonded everything fiberglassed everything... we have 50-60 hours in it but it came out absolutely perfect and correct. Anything less is perfume on a pig. Just My 2 cents If you contact me I can send you some pics and tricks on what and how we did what we needed to do. Ken 734.231.7634