Heh,heh. I have the original Citadel Orlanthi,rather nice he is too. Other wise I would use figures of a Celtic/Saxon/Viking style. Simon have you got the Chaosium Dorastor campaign? That has all sorts of inspiring info about the nearby Orlanthi settlement,not sure how easy it is to get tho'
Cheers
Guy
PS if you like I'll post up pics of my Citadel Runequest minis? Have been meaning to do it for awhile