In 2 years i will sell all my bikes...

Buy a DeLorean and set up Lupe's
McMosca* TM, Marka Registrada airboard park.

*Don't worry, I registered the name for you before some gringo steals it.

You won't bang your head getting in or out, won't rust much, parts are all 1980's GM etc. 130HP to scare the neighbours with!
The newer 300x 2017 re-make versions should be cheaper now too if they ever got made!



 
You should clear enough capital to buy a 2015 Lambo....

Lamborghini Huracan​

 
This was my father in laws last car, I never drove it….because well…I couldn’t fit in the seat,the original owner for whom it was made was a much smaller Italian man , like my father in law….didn’t have that big motor sound for a V-12, did sound more like an F1…drove him nuts when he pulled in the garage,I opened the door and told him I thought he started the mower to do the lawn..
 
But i bet it could rev to the moon!!!
 
Forget all that and become an effortless Greek god surfie in time for the next great flood!
40Kmh and can convert to an outboard.



 
One of my customers has a V12 Ferrari in his stable, with a stick shift as well. Wonderful car, but every 10,000 miles he needs to replace the timing belt - which means getting the engine out of the car. That gets real expensive real quick.
 
The higher end European sports cars are notoriously expensive to maintain and the Bentley GT required fewer procedures to maintain. The Porsche 911 series give very high performance with reasonable maintenance . The American cars are much cheaper but are more common place. Pick your poison.