Using a replay from a recent game, seeing that he had good macro and timings, I used info from that. I gathered that at 7:30 cybercore finishes, and he starts building an army around 9:00, at 9:30 having 28 army supply and leaves his base to proxy.

Pushing out at 9:30 from my base with your build, I have 68 supply in roaches, and they hit +1 a bit after the attack. All-in-all, I really dig it. I'm going give this a try, and one I worked out earlier.

That one hit the enemy expansion on Daybreak at around 7:30 with eight roaches, and a stream of speedlings. Behind it was a constant stream of roaches and lings, using 30 workers and one gas. Both are worth a shot, thanks for the input!