It really comes down to personality, but I would be plenty stoked to ride any of the divide solo. It's actually easier in many respects, IMO. Get a PLB or Spot and go for it!
A buddy in CO will probably join me for a few days this year, which to me is just right. I'd offer to join you for a section, but my start time will be late.
Flight and rooms booked – you're on your way... Best wishes sewing it up!