From what we've been looking at, going back through the Tesseract is actually going to be the best bet. Breaking any kind of warp-speed barrier can be iffy, given you could come out at more than a billion different points in time and be stuck there instead. SHIELD has a team of scientists working on it, though, and could probably really use your expertise. I tend to stay more on the technology development and repair side of things.
If your wife comes through, you might get a chance to commiserate with my boyfriend over the "difficulties" of being with an engineer.