Replication

[amfitrione]

Hey guys!
I have some question.
I need to make gunwale for ship, almost 250m like this:

Previosly i had three ways for fences and other architecture:

1. Flat fence - make wall of faces with transparent texture (now i want cylindric piles and crossbars)
2. Divide long flat fence for parts and make insets/holes ( here too long complicated and curve fence)
3. Create pile and dublicate and ctrl+d(now 250x(ctrl+d) and bridge (500 x bridge)

I looks trick with animation in Maya, but i hope
wings cooler then Maya, and i go without import