Hi there!
My Name is Ralf. I've build in the last seven Months the Floating Crane ENAK (1/50 too)
Fully functional and with the max sizes of 150cm length (59 in), 52 (21 in) cm width and up to 140 (55in) cm high, it is a little Monster on the Lake.
So I need a scale Recovery/Push Boat to get it back if it fails.
After some research in the www I fell in love with this little guy
http://www.landfall.nl/viking-energyGeneral Plans are available and many pics too.
BTW: I'm not a native english speaker, so please forgive me possible faults in my Posts.
And now the Project starts like others with planing and sketching with Fusion 360.
Hull and Frame including the main drive components are roughed up. Wood is ordered.