Decide which boat makes your heart happy and then make your decision. I would not assume anything until you look closely at the boat, make your decision, and then offer and survey. You can then re-negotiate based on the survey if it brings up anything critical.
A 20 something boat with original sails has probably not been sailed hard so let a surveyor ( a good one!) tell you what you are looking at. None of us has seen the boat and anything said is an assumption. You don't make purchase decisions on assumptions! Just make certain that you have money in the kitty to fix what your surveyor tells you plus a back up for the unexpected.