To respond to your question. I do not know your family, but if you think that you'll be allowed to study 3-5 hrs a day... either you are one of those guys that are sleeping 2-4 hrs a night (Kevin Johnson) or you your wife is really different.
With CISSP and CEH you are ready to start the course. To pass the exam is a different story.
My advice will be to buy the course with one month lab access. During this time study it. After one month build your own lab and practice (there are a lot of well made target available to download from the internet). After this go back and buy more lab time. You'll know when you are ready.
My own experience is that I bought it with 2 months access. Because I am in your position too (family, job, problems), I didn't had enough time and motivation to study a lot. I didn't even tried the exam because I knew I wasn't ready.
After the end of the lab time, I studied some subjects I was not strong enough. In one months or two I will buy another month of lab time. After this I will try the exam.
My goal is to learn something not just to pass the exam. I have enough certs in order to bypass any HR filter, but they didnt't provided me enough knowledge. OSCP and the other practical certs really made me learn a lot.
CISSP ISSAP, CISM/A, GWAPT, GCIH, GREM, GMOB, OSWP