Well, from what your profile says, the Ambassador's not gonna boot you out on your rear for being underqualified, so that's one good thing. Looks like you've got all your contacts, a pretty good uniform put together, and a decent amount of experience under your belt. Those are all pluses.
As for the big question, it's one I can't answer, and neither can anyone else 'cept you. How comfortable are you at processing and solving Almost Impossible cases?? AV hunts involve doing NOTHING but AI cases, and if you can't handle them on your own with absolutely no help from anyone else, then you're not ready to tackle an AV hunt. There's no help from your Agency, there's no help from any outsiders except your contacts. You're completely on your own.
So the question is, are you ready to tackle an AV hunt (ie. about 50-60 AI cases solo) on your own yet??
Hope the soul-searching goes well....;-)