But why would you really want to
The guy can afford the a/c but cant/wont pay for crew or some SIC training for one of the instructors in the school who can land the aircraft in an emergency.
Lets be honest something like an encore should be 2 crew, ok nobody has died yet but the figures dont show how many level busts (difficult with Primus but dead easy in a II), or other infringements there have been.
A relatively light II can still make 3000fpm even with 20 seconds lack of concentration you're going to make a big hole in the other guys level never mind the 5-6000fpm you can squeeze out of an encore (AI off of course!)
Flying something with that performance in the USA is very much different than flying it in European airspace. Which is why it is probably to be banned in the very near future.
And yes I've got 550/560 time