the Elf archers bodies are ideal for a start into an Araby themed unit , perhaps mixing some actual Middle Eastern figures ? I have some 28mm historical Turkish Pirates from Eureka Miniatures mixed into a handgunner unit , the handguns are so similiar and size wise they match perfectly .
That helmeted Empire head with the turban wrapped around would look good for soldiers of Araby , and also Estalian troops , its very reminiscant of a Spanish helmet with the Moorish influence from Nth Africa .
Have you looked at other types of headgear for Ottoman troops ? they wore huge turbans , and the Janiserries wore a very distinct looking headcloth , if you could model this on your handgunners it would look most impressive and so different to the usual turbans we see on Araby themed figures .
Even a Fez would look the part , perhaps with a tassle hanging down .
You might allso want to use some feathers , they tended to wear one single plume on the front of their headress , coming up from the forehead .
cheers tom