I'm glad someone with more xp than I about the setting answered! I most used it for extra monster manuals in the early 2000's, and looked at spells/items/classes & NPCs from their early releases, but i never kept up with it, and only stole ideas to use in my own, not scarred lands, games
oh...
I'd suggest making up adventures or using them as ideas/outlines rather than converting them
maybe stay more to the areas detailed if you don't feel up to making others up...there is a l lot of d20 materials for the setting, though I think mostly various campaign settings/places. If you like...
loved the Gith from the early 80's on...but omg is what you are doing headed into messy territory. Love it, and feel free to do it your way, I know I do (the changes from 1e to 2e were huge to start; I think they always knew they had some super cool/charismatic "monster" men but never knew how...
I think if I'd make them Djinni I'd flip the whole script, the Rod & the sides. The Djinn making a rod of many parts to aid the forces of freedom (chaos/anarchy included). That it flies apart importunely is the nature of chaos, and to prevent stagnation & domination from it being in one place...