I think Irregular do some kind of eastern warmachine crew which might be useful. Found these in there lists. Of course, you have to like their 'style'.
Siege Equipment, Wagons, Workers, Artillery etc
25/5 Civilian work party. Five figures with spades, axe or hammer
25/10 Five pushing, pulling and carrying figures in eastern split topcoats and baggy trousers
25/17 3 climbing figures, 2 sitting figures as above in Eastern dress
25/25 Three figures carrying lighted torches & buckets, two figures suitable for carrying ladders or rams (variant of 25/24 in Eastern dress)
25/32 Five women camp followers, in Eastern dress
25/37 Five artillerists in Eastern dress
25/89 Camp Pack - Great for DBA/DBM. Includes palisade (where applicable), pack animals, domestic animals, cooking paraphernalia, civilians, baggage. (Please state nationality and era and we'll make it up for you)