Fair play, go and enjoy. We sold up everything and went off around the world back in 1999 for a year, just backpacking. Everyone said we were mad. Best thing we ever did. It was all still here when we got back, no different and we soon fell back into 'normal' life, but with a much better perspective of it all. Tell your other half not to stress too much, life is easy once you let all the shit that's tying you down go. The traveling is easy, so many doing it, even back when we did it. There's so much to see and do. Probably give this another couple of years and get off again ourselves as we keep getting itchy feet now.
Good luck.