Solo can do your mapping too! It is most effective with a non-fisheye lens on the GoPro, but most orthomosaic software can handle the fisheye ok. Just bear in mind the flight time.
Making factory reset great again
Updating the recovery partition (golden image) so it is the current 2.4.2 firmware on the controller and solo's IMX. And to include the latest Solo ArduCopter (stock) or ArduCopter 3.5 with Solo defaults for green cubes. Which means a few things:
1)
No need for the internet on a new Solo or after doing a factory reset.
2)
No need for 3DR's servers that will eventually go away some day.
2) No need to immediately do an update of any kind after a factory reset. Immediately flyable.
3) Green Cube upgrade becomes "Push one button in Solex, drink beer."
4) Green Cube factory reset includes all needed python files and ArduCopter 3.5
5) Stock solo factory reset includes latest stock 3DR firmware
5) This recovery update probably going to be one-button flashable with solex or one batch file on a PC