Well, I did it!
I'll be flying SMF-DFW-FRA-DFW-SMF and doing it in less than 36 hours. I'll leave at 6AM and return at 6PM the following day, with no overnights or stay-overs, a true MR!
I found a flight, that while more expensive, has an instant upgrade to first and business on the return and I'll use an eVIP (from my reaching 2MM) to upgrade the outbound.
It definitely feels like I'm doing something insane (I am, aren't I!?!)

, but I have to say that I've been coveting EXP for a looooooong time and it's finally within sight.
Thanks to everyone on FT, you've been a big help and dare I say encouragement.