72 20' new deck

[Rbphipper]

I've been researching this site as it's my go to bible with the wealth of information and truly appreciated experience. However I cannot seem to find deck replacements when keeping the liner in. I'm struggling with the decision to lay in a new core on top of the old glass, which is in good shape yet wavy, or cutting bottom glass layer out, raising stringers and mounting side cleats on liner. I really don't want to rip this whole thing apart as I'm short on time and weather in NJ. I did replace transom with Coosa using the West System as a guide and increased height to 26 1/2, based on many CBC restores. I am open to all suggestions. Thanks all!