Do a google search for the Graupner Key Biscayne and you'll know the Germans had their boats vacuum formed in China decades ago.
Most Key Biscaine's were set-up with a 700 motor by their owners and ran like this:
As it's a large hull, even for a 700 motor, you could install more power in the Chinese version, but you'd have to reinforce the hull to make it able to cope with 40 mph+.
Also the steering outdrive can't take much more than a 700 motor, it'll wear out very quick.
Quote of a wellknown German raceboater: a universal coupler doesn't belong in a fast electric.
In order to turn properly, the boat also needs a turnfin (on the right), or two, if you wish to turn left too (not the wisest thing to try at full speed...)
Other than that, it's a nice design, somewhat outdated, but who cares.