Gold Medal Models makes a 1:350 scale fret for modern USN warships
"This enlarged and upgraded set contains enough material for up to two models. It furnishes railing in several styles including special rails for Arleigh Burke and other classes; vertical and inclined ladders; yardarm footrails for Arleigh Burke and other classes; radars including the SPS-6, SPS-8, SPS-10/SPS-67, SPS-12, SPS-29/SPS-37, SPS-40, SPS-48, and SPS-49 antennas; TDY-1 ECM antenna; two other styles of smaller ECM antennas; D.F. Antennas, Cable Reels, Stokes Litters; Windshield Wipers; Watertight Doors in closed and open positions; Main and Tail Helicopter Rotors for two SH-60 Seahawks, Helicopter Deck Safety Nets for Spruance, Ticonderoga, And Arleigh Burke-class ships, and several lengths of simulated stud-link anchor chains."
I'm not aware of a 1:350 scale etched lattice replacement set. Making them out of flat PE still results in a flat as opposed to a round shape
Flagship Models also makes a modern USN set. No pictures/info on that: the site is blocked from me here at work