Trimaran 'conversion' of 1929 Euro canal barge/yacht ?

[GoldMango]

I'd like to expand stability and deck space of the 17' beam/130' long Watercolour I. I envision two additional 'outrigger' hulls –– length of about 42' separated from each side if the ship by about 4'-8' (depending upon the design) with the beam of each outrigger approx. 8 to 9.5 feet. The footprint would then be about 3:1 (length to beam when counting the outrigger-hulls), same as the treasure junks of Zheng He were reported to be (90' with 30' beams).

I figure to carry a tender (Sealegs) and also have plenty of space for other applications such as accommodation for the film crews, an entertainment area, diving platform, etc.

[Note: Watercolour is currently powered by a single screw/260+HP aspirated Mercedes diesel. There's also a 24" diameter bow thruster.