MBA is, of course, excellent, and many of their pieces convert to ruins. And a big advantage; they're pre-painted.
Eureka has some market stalls and civilians in their civilians and vignettes sections. So you can fit in lots of things like a snake charmer, or a rope trick guy or whatever. Take a look at their harem; you don't necessarily need to use the scenery with it, but the monkey and some of the girls and such could fill in some places.
Once Crescent Root gets back up and running, they have lovely buildings.
Dwarven Forge has amphorae and such that are also pre-painted. More Greekish, rather than Arabic, but there you are. But there are also various clay pots in the same set that would work.
Look at Mirliton's Medieval kits. The food shop thing would work well enough; bowls of spices and veggies are pretty similar around the world.
Treasure can be bought from Reaper; they have a couple of old Egyptian treasure piles in the Dark Heaven line. Both sculpted by Bob Olley. You'll have to order directly from them, though. #s 3111 and 3112.
And, of course, we have some lovely buildings made by Mexican Jack Squint. He does nice work very reasonably.
likes the look of the Soviet KV-1 tank, and plunges into a project to paint three of them - plus a spare KV-2 turret!
