Focus, Evade, and Stress Tokens Focus, evade, and stress tokens do not affect huge ships. When a huge ship receives any of these tokens, immediately remove them and return them to the token supply
TBH as a Huge ship can't get stress I'm sure they would rule that you couldn't use cards that had stress as part of their cost, so no Zuckuss. It would be similar to the ruling on Soontir and Yorr, the rules on huge ships would cancel the stress gain so the whole card would fizzle.
There is nothing stopping you from using Fleet Officer...
Also, Dengar isn't really all that effective in an environment full of generic pilots. Rerolling one die isn't that impressive, especially on a ship that cannot use Focus tokens.