You can & we know it because that's one of the key differences between Eberron & FR. Coincidentally eberron halflings & gnomes are also more developed than those of FR's hobbits bu tnot legally in courtInteresting points.
Haven't done the whole "what would it take" analysis, but I suspect you can get spell analogues to handle most of the supply chain. If the to of my head "move earth" "tenser's floating disc" "speak with animals" various methods for fast travel.
Not sure how much spellcasting it'd take to break all the assumptions, but a lot of the big issues get solved handily by low level spells.
