I managed to get a pack of SPQR BMC romans, these purport to be 1/32 but are 60mm foot to eye; bit too big for my Call-to-Arms romans; however by replacing heads and legs it brings them to the right size. So for now I tweaked a cornicien and an aquifer, shown below with a converted figure in the middle representing a signfier holding the legionary symbol of a lion (I've chosen Legio XVI Gallica, who symbol was the lion for my legionary troops).