For me it was worth it. I really like this kind of work. Did it take a while? Absolutely. If you want to know how I did it and where I got all the material, I can email you with pictures. I believe mine is better than when it was new. I put an area of thicken epoxy approximately 1" around ever bolt and screw that goes into/through the deck. I did my re-coring from underneath. Once I got a system going, it went well.
Under the sole I used pouring foam and it is really solid. BTW the center post on mine was only sitting on 1/2 of it's support. I have talked with others and they have told me that their post was only on part of their support too. I beefed it up to 4 layers of 1/2 plywood and made it 3 times bigger than the base plate of the post and centered the post right in the middle.
Another thing is that I got to know every inch of my boat and can fell confident that she is solid.