ahhhh Dave. Sorry to read the news.
You are very good at several things; electronics, engineering, authoring, lecturing, building, on and on.
you are pretty conservative in your life's habits, so i am sure you are not so over extended that you will be in a financial duress for your home, farm, etc.
As much as you don't want to do it.... what about going back and teaching in college??
what are some options for you???
how will this impact the boys at school??
I think you are very resourceful and will come out of this standing.
My prayers and best wishes are with you!!!
Kristen