Tried again today, after the owner changed step W4, the only one missing in our quest. We got the same result as last time, when we tried to guess what the info could have been.
Still, no final box.
Our result took us to about 20m north from what would fit the hint. So we enlarged the search area, but still no box.
We shall contact the owner eith details about our quest.
Found it with miss_shady and Stefi. Solved it a while ago, but the final box was missing at that time.
Since then a new box has been placed and that's what we grabbed today.
Found it after taking the signals apart. No really, I am joking.
Difficulty higher though.
Found in the cache Pamela Anderson's figurine from Baywatch before her first boob-job :-P