Serial Console for the Rock64

[fire219]

I too neglected to purchase the serial console with my initial order. Very clever Pine Microsystems, Inc., now I get to order more gear. 
In the meantime, could I be tweaking the linux build of my choice on the card and when I have the serial console, use an imaging software (Clonezilla for instance) to write the SD to the emmc? Sorry if it's a ridculous question.
1. Image the sd build.
2. Use that image to write to the emmc (instead of pulling an image from the network).
3. Boot into the emmc build.
4. Wipe the sd card and use it for additional storage.
I'm guessing not at all that simple but thought I'd ask.

Luckily, due to previous work by ayufan, it is actually that simple. That will work.