The rub rail may or may not be a minor project
....depending on whats on the other (in) side, and if you want to repair it in the same way it was originally installed.
I removed both of mine completely and it meant gaining access to the nuts (spaced about every 8in) on the inside of the hull
It may or may not need to be replaced at all....have you considered just cleaning
up the remaining end and not replacing the rest?
I cant really tell for sure but from the pictures it looks like its damaged it a couple different places.
As far as the build quality of an 84 CT....I cant say..... I can say that my 78 CT has a well built solid FG hull
but had wet spots in the deck core
, and rot
around the windows in the salon
I also had considerable rot
in the bulkhead under the leaky companion way.
wood work is exceptional.
Much of the original SS fitting was dodgy.
Thru-hulls were excellent proper tapered valves.
If it has a wooden mast
and it's painted, take care....the rot is hard to see.
If the standing rigging
is original it may be getting dated and want changing.
Have a good look behind the electrical
panel....many boat of this age could use rewiring$$$...mine did.
post quadrant and all that sort was/is was rock solid.
Port hold gaskets were all dried out and leaked....bad.