http://monnaiesetvarietes.zxq.net/FICHES/Espagne/ESPAGNE%201%20peseta%20km%20806.pdf
That is the site of 'cobra' Numista member, and has pictures of differences.
And yes I agree with the mints you mentioned.
Well - not sure about Santiago as that point-like tilde could also be the British one, so need also to see the 78 star on the other side. :)
EDIT: Now I know what to look for, I have the first and third versions ...

So I show the long tilde above the short. Then the long date over the short.
The long tilde is Madrid only, regardless of the date length.
The one I do not have is short tilde with long date i.e. Chile.
I do have the short tilde with short date i.e. British.
Not sure what near or spaced means or looks like - just going by the site I mentioned.
Here is Numista page also ...
https://en.numista.com/catalogue/pieces787.html
Finally, I made this from those images of mine also. Hope I got it right ...
EDIT: Though from the reply below perhaps this is correct ...