Here is a complete, single-file HTML solution containing a 3D WebGL scene built with Three.js.
It implements all of your MVP seastead design requirements—the aerodynamic wing-shaped spar buoy, internal floors, low-placed battery banks, spaced-out RIM-drive thrusters, top platform with railing, extended solar canopy, and a 100 ft underwater cable with rotating fairings and a ballast weight.
You can save the code below as an `.html` file (e.g., `seastead.html`) and open it in any modern web browser.
```html
MVP Seastead Concept Visualization
MVP Seastead Concept
A mobile spar buoy designed to fit inside a standard 40ft shipping container.
- Shape: 39ft Fat Wing, 10ft chord, 5ft thick
- Buoyancy: 70% underwater (-27.3ft to +11.7ft)
- Thrust: 8 RIM-Drives (4 per side)
- Interior: 5 internal floors (Batteries low)
- Superstructure: 20x20 platform, 30x30 solar canopy
- Stability: 100ft cable with turning fairings & ballast
Left Click & Drag to Rotate | Right Click & Drag to Pan | Scroll to Zoom
```