OK... Did you just do that or was I just horribly early on something you did? Anyway, love the ruleset and modules and love Atomic Robo. Now to make a simplified version of AR that doesn't run on Fate. ;-)
Fate Accelerated works amazing for Atomic Robo. I wish we'd known about it when we did the RPG.
Whatever you do, something more narrative and with a meta-currency will probably capture the feel better than a traditional D20 system. The lighter the rules the better