Easy move. It’s got to be col Gravis’s conversion kits. Hands down the best bodies you will find to match our Praetorian/Mordian armies.
A few choices here.
The top choice would have to be the secret weapon heads. Im going with these. But there are lots of other head options if you want to stay with pith helets or diversify a bit.
Outlander heads could look work?
Id love to see light horse slouch hats...
this is just a few thoughts, the options here are unlimited.