I had trim the blanket roll so that the tails of the coat would fit. Also trimmed the inner thighs of the horsemen until they fit saddle. As Foy has said this is something akin to GCSE metalwork.
The Eagle bearer and Officer (with curiously waggly sword), all that remains is the musician. Clive of Vintage Wargaming has sent me a bugler, but I haven't tried him out yet. I think I may have to strip him first (ooo'er Matron).