If you were just starting out and hadn't already invested a bunch of time and money into aviation, I'd advise you the same as I advised all of my new flight students. Give it a try, and if you love it, go for it. If you don't love it, in the long run it probably won't be worth it.

For you though, having already dumped all of the time and effort in, I'd recommend getting a bridge job somewhere that will pay the bills and pick aviation back up as soon as you get the call. Even at the regional level (right now) it pays enough to be comfortable so long as you don't have 5 or 6 kids or something. Live below your means. Save not only for retirement, but for your kids' educations and some extra for the next time something like this happens. Buy your kids bunk beds, not that bigger house where they get their own rooms. Take your family to the zoo or a hike or a bike ride, not the $100 for 5 minutes sky diving simulator or the $125 per seat NFL game.

I'm not going to say that there aren't any office jobs out there that would be rewarding for you, but for me, comparing an office job to flying...well, it's hard to compare at all really. Your family will be happier going on a hike with a father/mother who enjoys their life and is focused on them than going to an NFL game with a father who is miserable worried about work the whole time.