You asked for people's honest weigh in, here's mine: DON'T DO IT.
Unless this truly will make or break your family's finances and your back is against the wall, the money ain't worth it. I look at my daughter, she's 18 month's old. The longest I've been away from her since she was born was 2 nights. From the time I leave in the morning until I get home in the evening, she's grown. Since she was 8 months old, I've seen her start walking, learn to play with friends, take her first swing on a swing set, go down the slide for the first time, learn how to use a spork, learn please and thank you, try ice cream, go to the zoo and see her first elephant, get her first hair cut, the list goes on and on and on. When I get home from work and I walk through the door , she screams as loud as she can and runs over to grab me as fast as her little legs can carry her. When I pull a board off the wall rack and put it on the ground, the first thing she does is say, "Brd, brd, brd!" and then climb on it. A few weeks ago, we went to the beach and I saw that she finally got the connection between surfers and surf boards. Somebody caught a wave and she pointed and said "Brd!" I grew up in a household run by a defacto single mother, my Dad was a career naval aviator and then an airline pilot. He was never home. I was the oldest and male, a lot of weight fell on thin shoulders. I can't tell you how many family emergencies went down that he wasn't there for. Hurricanes, a flood, 2 blizzards, car trouble; the list is legion. Me and and my Mom and younger sisters would pack up and move across the country without him and when all the work was done, he'd show up. And you know what, my Mom was a great military wife. When Dad came through the door, we knew, it was best behavior or ELSE, he rarley if ever saw the strife that his being gone caused; because we all valued the little time we had with him. I said from an early age, "If I ever have a family, I'll be there for them, I won't be gone like he is." That ethos is based purely on his not being there. I think a lot of that is why I moved out and was on my own from the time I was 16. That sounds like a good thing in some ways, school of hard knocks, etc. and my life now is great; but that's not a good way to grow up. My Dad is a great guy, lot's of fun and a great provider; I love him to death. But, he wasn't there and a little fiberglass,resin and sand paper don't heal that ding. You will never get back the time apart from your family. Money isn't the most valuable thing in this world, but like I said, I was on my own since I was 16, I know what it's like to be completely broke and it's no joke. Debt is a heavy burden. My wife's a stay at home Mom these days, that's required a lot of belt tightening and sacrifice. We went from two incomes to one and feel very blessed we can pull it off. One thing I see in my wife that I saw in my own mother, she gets frustrated, she loses sight that the baby doesn't always do things that she needs her to, so she gets snappy. She suffers, the baby suffers; thank G-d that when that happens I'm there too as the second parent who can say, "Whoa, take a step back, you just snapped at a child, why?" Usually, it's 'cause she just needs a break and then we're back to being a happy family again. I have a feeling you've already made up your mind., but if you haven't, Don't Do It. My two cents. Good luck, no matter what your decision is.