I agree with MrBond, if the two of you are really committed to make the M work then surely there's some flexibility in the work schedule. I know my W and I had to sacrifice to make it work, but what some of the others had to do to get there was way beyond what we had to do.
Some of the people that participated in our weekend flew in from great distances. There were followups closer to their homes, so they flew to the main weekend and then had the followups in their area. Perhaps you could check into that. The weekend is by far the most important part, the followups build on what you learn over the weekend.
