A dolphin-type boat that can also jump and actually maneuver

It is a one-seater boat, shaped like a dolphin, and it seems that you can do almost anything you can do with dolphins. Besides diving and jumping to the water surface, barrel roll etc are also possible. In addition, we are currently developing a version capable of two-seat riding.

Details are as follows.
Innespace.com
http://www.innespace.com/

Pictures are here.

Picture Gallery

You can download movies from the following.

Bluerev.mov(26.7 MB)

The two-seat version is like this.

Dan's 2 Seater

If I actually buy this, how much will it cost?