The engine parts went together essentially perfectly.
The clutch from Top Studios is somewhat insane really.
I hope the detail is visible in the finished piece. The clutch itself has 16 plates inside, alternating smooth and toothed then capped with a couple resin pieces.
Not really difficult but my big hands didn't help while folding up the verticals... I must have popped plates out 10 times while trying to get everything aligned. After getting all the verticals in place, I added a couple drops of CA to the interior of the plates to keep them in place while adding the first top cap. Getting the verticals to pass through the gaps was a slow process but it all worked out.