Im thinking the tiger miniatures models?
There is no minis for greek cavalry during the wwii. A good proxy will be polish ww2 cavalry in Adrian helmet, with sabres and no lances. In all the depictions I have seen the greek cavalry retained the French Adrian helmet.
The other option is Tiger miniatures with head swap, The tiger miniatures wear kepi which was replaced by 1935 so in order to use them you need to replace their heads with French Adrian helmet.
Crusader and warlord French cavalry is in greatcoats and only useful for heavy winter.