Also also, Iliana's released another update?

Had a similar idea too, but I won't start it now, just leave the thing as it is for a while. Currently working on new additional versions of the lower class houses and retexture/optimize the meshes for the passages.
Have a very vague quest idea on a gang of skooma smugglers. There's a part in the Pocket Guide III:
and we should do a quest with this gold cat and it's smugglers in Rimmen. The real challenge would be a cross-mod quest, with Iliannas Corinthe and Starx Senchal

Just for example, lets say there is an Alchemist living in Rimmen, selling various ingredients. He's bound to sell things like Durzog meat and Barrel Cactus Juice much more cheaply than, say, Clouded Funnel Cap or Wormwood Leaves (found in the Jeralls), which would be expensive, seeing that they're difficult to obtain and rare (for those living in Elsweyr, at least).
Likewise, for a weapons dealer, Akaviri artifacts (rare elsewhere in Tamriel) you can obtain quite cheaply in Rimmen. You'd be hard pressed to find things like maces or axes in Rimmen though, since the Khajiit prefer daggers and bows. As such, any maces being sold in Rimmen would be quite expensive..
As far as I understand, this is not possible with EE, as you can only change a whole category together. See TheNiceOnes list in the second 'spoiler'. And I know, you do know anything about looking into spoilers

Had hoped that too, e.g. as the Khajiit like sweets so much they would pay a lot for foreign 'exotic' sweets like Salmos products for instance

My idea was that heavy weapons wouldn't sell good in Rimmen, as nobody want's them. And a real world Katana for instance needs a lot of work and knowledge, you wouldn't get a good one for low prizes anywhere. Only difference to the rest of Tamriel is, that you can get more of them in Rimmen, and other Akaviri things you find nowhere else in Tamriel. But that wouldn't make this things cheap.