Re: Post Survey Cost Estimates
Without seeing the boat or pictures its hard to really know what is going on. But the only two issues that sound significant to me are the mast step compression, and the delamination. Everything else is just to be expected in a boat this age.
The mast step must be fixed. One it starts to compress it generally doesn't stop until the rig is punching a hole in the hull. There are a number of different way to fix it, but at a minimum you will likely have to pull the mast and disassemble the standing rigging. Not a huge job, but depending on the exact repair it could get expensive.
The delamination, and wet core is like cancer. If surgery isn't done immediately it will just grow and spread. So long as the damage is localized it can often be repaired from the inside, by just cutting away the inner skin, replacing the bad core, and grassing back the old skin. Depending on the repair size this can take an hour (less than an inch around), or require a full rebuild of the deck (once it spreads throughout).