The bag is the Vanguard Divider 37 and it's pretty much an exact fit for a Ghost without a tophat. The only downside is that you can't fit much else aside from a few cables, so your keyboard, mouse, etc. will have to be carried separately. There's also no shoulder strap support. That being said, it seems very well made and the carrying handle is sturdy holding the weight of the Ghost. There's lots of padding on all sides, and the divider inserts it comes with can be repurposed for additional padding.
The bag is the Vanguard Divider 37 and cost me $50, which I think is a pretty reasonable price for what you get. It's extremely minimal and won't fit much other than a base unit Ghost and a few cables, and doesn't support a shoulder strap. That being said, it seems very well made and the carrying handle is sturdy. There's lots of padding on all sides, and the divider inserts it comes with can be repurposed for additional padding. You could easily pack this into a carry-on bag with the rest of your gear and not have to worry about it.
I know people using the bigger variant of this for their Ghost cases
that wont fit.
this one does fit on ghost with small tophat
https://www.amazon.com/Vanguard-DIVIDER-BAG-37-Camera/dp/B003G2YZLE
Vanguard divider 37, I think it would if you unscrewed the feet