Might be better to either change carreeers to something that pays better or get a part-time job & get out of debt. Living in a RV with 3 kids won't be any cheaper plus maybe will get really stressful..
If your Wife doesn't work maybe it's time for one to work days and the other on the night shift. Spending money to get out of debt in most cases just leads to more debt.
I am one that never worked in the field of my education, kept doing what I did to get thru school. Never understood going so deep in debt for a career that couldn't pay for itself.