3D-Printable Prototype Boat CAD

I need a clean, watertight 3D CAD model of a small prototype boat that I can send straight to a resin or FDM printer. Its core purpose is feeding and medicine dispensing, so the hull must be laid out around a dedicated storage hopper and a straightforward release mechanism I can later refine for dosing rates.

Beyond that, the design should already include:
• A water-quality sensor section I can mount probes into later
• Camera and GPS mounting points with enough flat landings for standard action-cam and GNSS modules
• Clear motor and electronics bays with cable channels that stay above the waterline

Because I will be testing internal component placement, I need detailed interior and exterior features—not just a shell. Hull halves, service hatches, and any supports you add should align for 3D printing without extra post-processing. Native files in SolidWorks or Fusion 360 plus export as STL are required; STEP would be helpful for cross-software tweaks.

Deliverable acceptance:
1. Model opens error-free and manifold in Cura/PrusaSlicer.
2. Major cavities match the rough dimensions I provide after project start.
3. All mounting faces are flat within 0.1 mm and oriented correctly relative to the hull datum.

If this sounds clear, let’s get started so I can have the first test print on the water soon.