I think I understand your question. I wondered if this would be a problem with my feral druid, using certain moves that can only be moved while using stealth. It hasn't so far, but maybe I was just lucky that the "Cheap shot" style stuff (I think it's called pounce) went off before the first autoattack made contact.
So I see a few possible solutions.

1) Spam cheap shot fast! It may or may not have a greater range than a simple attack.
2) Hit interact with target, then hit whatever key you've bound to "stop attacking". Or make another macro that turns attack off.
3) Maybe make a macro that has the first line as a command to stop attacking, and the second to cheap shot, and bind it to that key. It just might work.