Did this today - I screeded it before Christmas about 100mm thick down to 25mm near the path .... it rolls along to the unlevel tarmac pavement. Not bad for a day's work... needed to be done today.
if those tiles are Porcelanosa I fitted hundreds of meters as an apprentice.
Lost count of the amount of times I put the border in the wrong way round!
Used to drive my old boss mental!!