I think you should go and try them on in person first.
I have the Mayari and they were not even ones I was considering as I don't like a toe post. But these are a toe loop and don't rub like I expected them to.
I wanted the Milano like you and that was he first I tried on. And imo the most uncomfortable as that back strap came up quite high and rubbed onto my ankle and I couldn't even walk in them while in the shop.
Also, I am a size smaller than I expected to be.
I wanted the Milano. Bought the Mayari, but it was a choice between those and Arizona in the end.
As above, look out for lightly worn 2nd hand if you want to try some out for a cheaper price. Lots of people don't hang in to break them in and sell them on after just a few wears. Some people can wear them comfortably right out the box, but some need a bit of time for them to shape to the foot. The leather take longer I think, I have the birko flor and it took 2 to 3 days to get used to. No blisters, just the foot getting used to the footbed.