So I bought these two bags (small and medium sizes):
https://www.amazon.com/dp/B00B7WWGY8/?tag=neogaf0e-20
https://www.amazon.com/dp/B00B7WV4KK/?tag=neogaf0e-20
Got the big one and posted a bit in the other thread:
http://m.neogaf.com/showpost.php?p=232695681
Playing with it a bit more, I can get the Switch and dock together inside along with extra set of joycons and straps, Hori 24 game case and power brick (and presumably HDMI cable) in the open space above the Switch/dock, and extra two straps fit in the pen slots in front. Pretty neat and compact for a full setup travel solution.
Anyway the small one came in too:
Barely fits, but it fits. Joycons can fit in front like the other one (smaller pocket is the same size) but thickness/bulk wise it works better if they're just on the bottom like laid out there. There's enough space left in front for thin stuff like cables or a flatter form factor battery. Can't really get the Hori game card case in, but found you can pop out one of the pages (12 games) and just stick that in one of the pockets no problem. Course with both bags you can get creative with taking off the joycons too.