PE f. hand rails under bridge windows

[TheDuneSea]

Can anyone point me into the right direction which PE parts are best suited to recreate hand rails and walkways under bridge windows in 1/700? So basically a one bar rail for the hands and a very fine three bar rail (differs from ship to ship of course) to step on.

Here is a photo of CDG to show what I am talking about but the same goes for other carriers, destroyers or frigates as well: https://www.seaforces.org/marint/French ... lle-59.jpg