I think it will be very hard to live in an RV, with both of you working full-time (with the added possibility of one parent being absent much of the time) and raising a very young child. It's hard to find excellent AND affordable daycare; doubly so, if you are working night shifts or 12hr shifts.
Another thought I had on this subject is this--what is your plan when the baby gets sick and you need to work? Will you have someone to back you up when the baby has chicken pox/flu/fever/vomiting and can't go to daycare for a week? Or will you just have to take that week off--not something a potential employer will be happy with AT ALL. Speaking as the mother of 3, this can be a HUGE problem for parents who do not have an adequate support system in the community. I think you need to have all that lined up before you proceed any further.