Sorry, I can't find any 1/300 railing. I'm mistaken. Perhaps another reader knows a source. I thought for sure there would be 1/300 source just for Lindberg's DeLong DE.

The 1/350 railing is only 85% that of 1/300. It's better than nothing.

Conversely, you will need to order the helicopter hangar for the Brooke or build a DASH. The kit incorrectly has a DASH hangar instead of the helicopter hangar for the SH-2 Seasprite.