extra parts for Speed Boat 3 RC

I found Wersy's speed boat 3, and I want to made it for my opinion.

Here is the source: https://www.thingiverse.com/thing:930577

Well, I had an old quadcopter, with broken FC, so I want to recycle the other parts for a new project, but now, not in the air. So, I had 1105 motors, and SW90 servo. You'll find all printable parts for that, up to 24xx props. Well it is not finished yet, but it is almost done. If you have any suggestion, please ask.

I attach some prototypeing picture about th