I am tempted to build the nearly the whole Trade guild crew from non-GW Blood Bowl miniatures (Willy and others).
As I'll probably never paint up a team it would be an opportunity to use them for other purposes.
Mainly Squats but also humans and even an ogryn and a ratling (both security guards).
As professional lumber jacks they should all have PPE and Blood Bowl comes quite close and I have miniatures with chainsaws...
@Scalene: Would that be ok or would that conflict with your vision?
The two overseers would then be of the unarmed kind (only pointing and shouting as the obvious use of whips is boring)
The mechanic and the Boss will probably be citadel dwarfs or squats.