Can The "forbidden Six" be used as Mounts?

[Tyberius]

Hi guys, I'm somewhat rusty on this modding thing and I had a crazy idea, that maybe has been tested before, so I wanted to know if someone has tried to use the (actually) "forbidden seven" ("Peasant","ChainHlm","HlPlArSH","LArmWCav","MKnight","MSHelm","PlateS" ) as horses. (mounts) it would be great to have units mounted in hazel/grey/white/black/ horses...