Boca Chica Boogaloo!

To catch everyone up, Micky and I bought a well-used 1986 Hunter 34 named "Malana" ( Hawaiian for "buoyant") in January.  We got a great deal, The boat includes a slip in the Boca Chica Marina (winged conch on the burgee) aboard the Naval Air Station in Key West.  The boat is structurally sound and very well-equipped for cruising (solar and wind generators, radar, and good ground tackle.  We also got a dinghy with 6 hp motor and even a 94 Firebird Keys Cruiser!
Now the reality check...  The boat is 26 years old.  The previous owners lived aboard for years with the wife being very sick for last few.  As a result, boat maintenance was not the highest priority.  Even though the marina has a great shower facility, she was hampered in her mobility and showered below decks. 
Combine a lot of water and poor maintenance and you get wood rot.  The rot is confined to the head and lavatory.  My predecessors had tried to hide the problem with some cosmetic cover-up.  They covered the walls with self-stick floor tiles.  We stripped out the tiles and dismantled the furniture today.
It's amazing what you find when you dig around in older boats.  There's a theory of mine that most boats have an IPO (Idiot Previous Owner).  It seems harsh, but when you look at some of the things that are done to boats, you either chalk it up to ignorance or sheer stupidity.
"Malana" has her share of mental toe-stubs.  One of the the scariest was the wiring to the inverter.  Picture heavy battery cable routed direct across the top of an engine and in direct contact with the hot exhaust.  If the insulation doesn't melt, it chafes through.  The fresh water pump had a switch hidden under the settee.  The water pressure switch seems to work well and the circuit breaker is a switch itself.  WTF!  Apparently, the engine key switch was vandalized.  Instead of replacing it, a rig involving a switch, electrical tape ( a favorite splicing device for all serious electrical duffers) and scrap wire was devised and hid in the aft starboard lazarette.  Exposed joints and all.
Today's whopper was a double whammy!  Both safety and sanity are strained by this one!  The purpose of a siphon breaker is to prevent water from siphoning back into and flooding the boat if the intake valve in the toilet pump should fail and the boat is heeled, placing the toilet valve below the waterline.  It takes a lot of work to install a siphon breaker, since the inch-and-a-half hoses used are very stiff.  It really wastes a lot of effort to put the breaker in the wrong lines.  The last owner put the breaker inline with the overboard pump!  He acknowledged the malodorous error by attempting to seal the anti-siphon valve with tape.  The reason behind the tape was that with each stroke of the pump a small geyser of human effluvia erupted behind the head furniture!  Yay!
All this awe-inspiring work is eminently do-able and not terribly exotic.  In fact, I bought the boat knowing most of this and expecting all of it.