Folk Song

This circumnavigator (1974-78) has some unique customizations.
The fuel tank was (recently) removed from its original location, and a large access hatch put in the cockpit floor, providing access to the back of the engine and creating space to install an Espar heater and other items.
Where did the fuel tank go?  One tank was built into the aft seat of the dinette.  Outboard of the tank is the duct work for the forced air heater.

I think another fuel tank was installed at the bottom of the aft hanging locker.

On deck, her stove gas tank is mounted in a special teak box, vertically, next to the mast. 

Note the beautiful brightwork and refinishing of the cabin top.

Her main sheet goes completely to the traveller, and she has traveller adjusting lines.

For her circumnavigation, a collar with tangs was installed in the upper portion of the mast, for running backstays.
Her forward sink was converted into a unique work bench.  The bench folds out, and includes three holes to secure a vice.  On the bulkhead, lots of tools are suspended on hooks and secured with bungee cords.  The panel on the right side of the photo is a door that closes over the tools, and has a mirror on the exterior face.