Gap year

[Exile]

With so many posts on this topic, I will apologise now if this is already covered , but here goes. My wife finishes her Nursing degree next year, and then has a year to work for the health trust that sponsored her, I am just about hanging on to my sanity in order I stay in my job that supports her and our two boys (20 & 19), in 2015 we have decided that a gap year is going to happen, and by the look of the forum, people do start thinking about this quite a long time in advance.
We will finance it by selling the house, yes folks, there is no way I want the agro of tenants, I know of so many nightmare stories from friends, so its not worth it to me. I have worked in Africa and Asia, and we are both experienced tourers on the bike, although mainly europe, east and west.
The idea is not just rely on the set aside from the house sale, but to find work in the places we decide to stay in, so for instance, western europe, has anyone any experience of obtaining casual work, we are both mature, but fit, well, and have practical skills. I am considering taking a teaching English as a foreign language qualification.
We will camp and hostel wherever we can, and due to my wife being Slovakian, we intend to leave some clobber in Slovakia on one of our visits by car prior to going.
This may seem like a burning of bridges plan, but when we return we aim to start all over again anyway.
Any comments