Glencoe made a model of J.P Morgan's yacht 'Corsair' in 1/130, and that's about as close as you can get in plastic to this type of vessel. It's a very elegant vessel, albeit one of 1890s in date.
These early 20th century steam yachts are popular subject matter with big R/C kit manufacturers, but you're looking at BIG bucks for those sort of kits.
Will