Not sure if an ambush is a good idea, though you know her better than I do, her strengths and weaknesses, you think a bunch of us can restrain her with little to no injury to her or us?
I was thinking more find a place she can't get out of and whoever she's in danger from can't get in and keep her there until we figure out how to make her stop acting so crazy. All we'd need is bait to lure her in, someone she deems "Inhuman" would be a good choice, she might follow them.

...maybe the SAL lab. It's out of the way, hidden, probably has a lock.