ElCamino,
Good luck with your new life.
After all you've been through in PR with your business, your old business partner, your wife and the inlaws, a clean break and brand new start is probably a good thing.
You are also removing a great deal of stress with the 9 to 5 job and not having the welfare of all these friends and families hanging on your every business decision. Let someone else (new bosses) carry that weight for a while.
My best advice in proceeding with plan D is to take all the emotions out of it. Reconciliation and MB's is all about changing feelings and emotions, but plan D has no place for it. Divorce is a business deal, and you will be wanting two things; the best custody plan for you and the kids, and keep as much of your current and future assets as possible.
You do not want to use the divorce process for either retribution, nor with any hopes of reconciliation. If you start giving concessions to make you look like a good guy or to win favor with the wife, you will just end up taking her leftovers.
You need to get a plan and work everything you do towards the execution of that plan.
I was able to get every concession I asked for from my WW in the divorce, without even going to court. I got 50% custody, the house, my truck, boat, and most of the furniture, and even some child support, all settled in mediation. My wife did not concede to all this out of guilt or pity, it's because I was well prepared and had paid attention to every detail. I was coming from a position of strength and would have fared even better if it had gone to court.
If you have to wait 6 months, then you have plenty of time to work a plan. Here's a link to "the list" which has a bunch of good suggestions in it, though some may be a bit extreme. "The list" is not like MB's, you can pick and choose what applies to your situation.
http://www.dadsdivorce.com/father_divorce_forum/viewtopic.php?t=13374The most important thing you can do right now is to start a daily journal detailing everything you do in the care of your kids.
Stay strong, ElCamino, and let the best interest of your children guide everything you do now.