We have high ceilings and now I finally know why that's a good thing.
Both blades are gorgeous.
I would also go for the shorter one. I can chop well with a long one but my aim with a tip that far away from the handle is just horrible. Also there are too many corners and door frames.
In any case I envision it to be more stabbing and cutting than swinging. I know chopping off an arm is a surefire way to stop a bad guy but I don't like that kind of committed strike with a heavy blade. If I miss I get stuck in a wall or expose myself too much for too long. I like faster techniques which come back fast into my defense even if they miss. I can only guess from my Katanas, what's the weight of this Wakizashi?
Does a Kukri's bend make it easier to defend around obstacles and at the same time expose less skin?
Scara makes a good case for the WW2. I don't have one yet and have to see how weight and length compare to the ones I have.
You're lucky, my ceilings are no higher than seven feet, and I'm just under six feet with a longer than normal wingspan. If I ever had to use my WWII in my place I'd end up with the blade scraping along the ceiling, or taking out light fixtures. To make things even better, the hallway right outside my door is narrow enough that I can't make horizontal strikes without hitting the walls. The rest of the place is wide open, but not there.
I experimented with attacking around corners, and the kink doesn't seem to make much of a difference. I'll admit to having little experience, but your target would have to be hugging the wall for it to work. I suppose a kukri would shield you some in an around the corner strike, but I have my doubts how much difference it would make.
And seeing some of the pictures of the food hasn't made me hungry for pea soup, but it has made me hungry for a good dark bread.