My ships use pretty much all the DLC's but generally they aren't technically integral, you can replace most of the blocks yourself.

It wouldn't fly in atmo, no. The maneuverability's alright and the merge blocks on the sides are just for aesthetics.

shoot, I managed to forget to ask a question, my bad, but I also want to know if this can sustain flight in 1g

This ship looks really cool and exactly what I am looking for, I just have a few questions, 1, the ordinance links, what are they for, I don't see any drone or missile launchers. 2, how is the maneuverability. 3, do the DLCs on this ship do anything important, I don't have either of them