Update 02.2024:

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Added links to source design in Tinkercad (More Info Tab)

Added Pikes Peak lower grip

Updated Short Handles to use brass heat inserts, made back holes taller to accommodate 30mm M3 screws properly

Pikes peak handle has separate core which can be made from 5mm aluminium/carbon fiber. I was too lazy to cut it so made one 3D printed - holds more than good, stable enough for my DD1 20Nm wheelbase.

Remodeled the original handles to use brass heat inserts same as the pikes peak grip and remodeled the mounting holes to properly fit M3x30 mounting screws.

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My replica of the Bentley GT3 Steering wheel. Backplate cut from Aluminum 6mm, handles wrapped in PU leather.

Paddle Module can be found here:
https://www.thingiverse.com/thing:5561576

This is still work in progress - handles needed some filing on the cutout to fit. Since then backplate and handles were edited (cutout extended to 1mm, should be enough), but has not been tested.

The central timepiece fits very well printed from my printed, no additional postprocessing needed. Everything clicked right away from start, very stable - pretty snug fit.

Timepiece window was cut out from 2mm hobby plexiglass and tinted with automotive window film (95% darkening).

Backplate is uploaded in STL for 3D printing and DFX for cutting.
Encoded buttons uploaded in three heights - 10, 11 and 15mm. Still not decided which ones I like better.
Left handle uploaded, mirror for right.