5/5, Tanky hunchback/linebacker combo, and it's perfect. Could do LE285 and fill up the slots with another DHS in an unprotected arm, but OP seems a more reasonable option.
Personally I run this build on the 3N for the additional 10% range quirk, although that's wasting the 3N's arm mounts, I guess.
@Nimnul That's part of why I run vanilla Medium Lasers on the 3N. Lets me use the saved tonnage for other things, like armor.