Wow. That's quite a project. You have your work cut out for you. I'm always amazed that people take obviously wrong shortcuts and then don't take care of the results. Even so, that boat must have an interesting story! I must say, your replacement compression post looks positively spindly.
Have fun with while your GF is gone.
T. P. Donnelly
S/V Tranquility Base
1984 Islander 30 Bahama