Headliner
On my Bahama 30, the headliner was good when I bought the boat, but the sides around the lights were torn and rotted from leaking windows. You can fix this yourself, but its a fair job. I tore out all of the headliner in the main cabin with the exception of the very top. I took out the windows, ordered replacements from Mark Plastics, and dug out all of the rotted plywood.
I replaced the rotted plywood with 1/4" ply and epoxy. I then covered the whole area with 1/8" teak plywood and routed out the window holes. Let me know if you decide to do this and I'll send more complete instructions.
Once the teak was in place, I installed the replacement windows per Mark's instructions (use SilGlaze) So, all I have with headliner is the very top. Let me know if you want pics. I'm heading to the boat later today and will post a couple if that would help.
Fred