First, having born from Blue Destiny or to be more deep ; Ground type lane of units, i think you can't whack it into a transformable, so.. yeah. GP Series got like the fanciest thrusters all over the body paired with binders, but for backs, i guess something like Zeta's line, Hyaku Shiki line, or Random Binders like from Dias line will work... Arm, eh... Although there are non-modelkit fellows with weapons there like the Striker Custom, first i'd have to ask : what type of unit will this Cyclops Mk.II be ? Close quarters ? Heavy assault ? or...
i do, try looking for positroneidon and y'll find meh. lol XD