Inserting a comma between "door" and "but", i.e. 5) The Chilean, who is not next door, but one to the Belgian, ..., would certainly change the meaning to one tent between the Chilean and Belgian.
I think that st3v3n80 should ask his friend that gave the puzzle to him/her, to clarify.
It's relatively easy to sort out names and countries, but the number of caches appears not to have enough given clues.
That's it!
Plainglazed's answer appears to have come in slightly ahead of bonanova's, but both of them are right.
X^2 =C (10^2 = 100)
X^3 = M (10^3 = 1000)
Was a quickie, wasn't it?
A bit late now, but here's a revisit.
I told you that I could have chosen a "better" stack! Here's one that actually works. It contains overhanging of bricks, but shows that shifting does not necessarily alter the perimeter.
No more yellow segments, Thalia!