From what you've said, it seems your wife is not really into steeming, and she is okay with a job. I would suggest she keeps her job, then maybe when she is back, she can post on Steemit, while you focus on full time steeming. So I'll say a combination of 6 and 7 would be ideal.
Yep #6 is pretty much what we are doing right now. I love it. Maybe my wife may be open to #7 in the future but not sure. But i really think I could be financially free from Steemit in 6-12 months.