€20,000 to maintain a replica ship?

[Epictetus]

Contrary to medern ship building, the ancient boats were constructed hull first, with a system of pegs that fitted the wooden planks together. The sceleton was added after the hull was complete. The problem is that if one plank needs replacement, one has to dismantle all the planks above it, replace it, and put all the timber back again. Does 20.000 seem still too much?

That's really interesting, Giannis. Thanks. I think I had an idea of how the hull was constructed, but it never occurred to me how difficult it would be to repair. That makes sense.

The ancient harbours would have (he calculated about 8) men working every day on this exact job on every ship that needed repair, in constant basis.

8 men per ship? This sounds like a very labour-intensive job for skilled craftsmen.