Jet Drive boat prototype, searching for motors

Hi, i need to build a boat prototype using this kind of jet drive:

Unfortunatly, the engines to use with it are sould out, can someone suggest me some alternatives, even brushless? (i'm based in europe, more precisely in italy).

Except this, with that kind of motor, an ESC is mandatory or i could also use some pololu motor driver?

Thank You

Get some standard brushless RC boat motors, something around 1400 rpm/V and 100W capable perhaps? The ones with a water-cooling jacket are preferable I guess. Do you have any idea what rpm and power you actually need - I suspect you need to research this.