After a couple workouts of feeling like I didn't scale appropriately, made it too easy for myself, I think I scaled Eva perfectly.
I did 3 rounds rather than 5, of:
30 12-kg KB swings
30 jumping pullups
It was very hard, but I succeeded in my personal goal, which was to run the whole way, and even when it was the slowest of trots, I never walked. I had a good high a couple minutes after finishing. I came close to puking but never quite got there. I love kettlebell swings. I did these in sets of 19-11, 16-14 and 12-9-9. Pullups I broke down to 5 rounds of 6. All in all, good scaling, hard effort, I'm sure my traps will be sore tomorrow.
I'll keep my sweet Eva at 3 rounds until I can do that in under 30 minutes, then add a 4th.
I still suck at running WODs, but each time I do one, it gets a little easier to keep running.