I'm sold on the Kata - how long is everything end to end? I could tell you if it would fit in my bag. It really protects the viewfinder great.

Even their backpack might fit everything - the BP-502.

Petrol PCCB-2-N with EX3
 

Internal length of the Petrol PCCB-2-N shown in the pictures in that link with my EX3 in it is 48cm (about 19 inches). I now Kata bags are good but I'm happy with my solution and like Petrol bags just as much! Kata BP502 looks really good but exceededs even the British Airways carry on maximum dimensions (larger than most over here) in both length and width so would be a bit of a gamble, especially on smaller jets within Europe.

I prefer my Kata CC-197, but I was thinking that the CC-195 would be a great option as well. It is supposedly good for airlines, but I am not sure about the smaller European jets. Exterior is 11 x 12 x 24 (approx) and is 23 inches long inside - easily encompassing the camera even with a folding shoulder mount on it.

I've got the Kata CC-197. The bag is great but it is big. I am really surprised to hear that people can use it as a "carry on" with the airlines.

I would prefer to have a smaller one for those times when you don't need to carry a lot of extra stuff. The Kata BP-502 backpack is really appealing as an alternate to the CC-197 allowing you to hand carry other stuff.

That's why I was recommending the 195 for airline transport - those few inches really make a difference. I think I'll be fine on "some" flights with the 197, but certainly not all.

And I can neatly place my wide lens adapter, 2 wired lav's, 2 wireless systems, Sony pro headphones, shoulder mount, case for cards and adapters, cables, Anton-Bauer charger and spare battery, and my 13" Dell notebook in my case. Because of the rectangular shape, I can put almost as much in it as in the larger BP-502. I have them both here and tried them out. the 197 accommodates the viewfinder much better than the BP-502.