Here's my 3D-printed micro springer project. Unimaginatively named Microspringer.
With already a few projects at hand, why not add more distraction and work on an extra project ?
Anyways after I built the Sequana I developed a fondness for those small truckable push boats.
Their very basic hulls also make them easy to model, especially for someone who has little CAD experience (= me).
Hull is essentially a scaled down "regulation compliant" springer hull with some adjustments.
While I intend to 3D-print most parts, there's a few things you'll need to source elsewhere.
Here's a list of materials to get a microspringer running. YMMV
I've written some instructions along the 3D model files.