Thanks rarcand, this might be of some assistance The Fitzcarraldo was built in 1971 in Sandnessjøen, Norway for TFDS as the MV Bjarkøj. She was 20 years a general cargo and passenger ferry working the islands around Tromsø in north Norway.
In December 1991 Walk the Plank(a theatre company) purchased the ship, renaming it the Fitzcarraldo. The ship was registered British in 1992, the same year of its first British national tour. Its hold was adapted as a theatre.
Each summer, from 1992 to 2006 the Fitzcarraldo set sail from the Albert Dock, Liverpool and toured ports and harbours in Scotland, Ireland, England and Wales. Audiences of up to 125 people could sit on the aft deck to watch as the hatches rise and the cargo holds were craned open.

In 1996 this ship was in the "Special purpose Ships" category. While not as spectacular as on some old pictures, the inscription "Walk the plank" across the bridge (it was on top of the hull in 1996) let me wonder what was the purpose of this ship indeed very special.