6 Dunes, 5 buffs. I'd pack 4 Dunes at most in most types of Dune decks (and thus 4 buffs too, you want them for the draw chance, not really the attack boost). Aside from that, HG+Dims is a known and powerful combo, whether you combine it with Fractal+Ghosts/Dragons or Dunes. Having 2-3 Eternitites is highly, highly recommended. Because this runs on Dune instead of Fractal+target, you'll have other weaknesses but you can at least live without tons and tons of quanta.
I'd run 3 HG's too. Dials are indeed pretty pointless.