I'm encountering the same thing, and I live just 3 hours southwest of the KIA Plant up in West Point, Ga, Anyways from what I have been told, the plant is not up and running at full capacity, and the only vehicles they seem to be building is the Nightfall edition and a very limited selection of the other models, they like everyone else are having trouble getting people to come back to work, plus they are not getting the parts and raw materials coming in (Via Truck & Rail) to supply their assembly line and engine plant, some dealers have told me they will take my order, But, they cannot give me a firm delivery date, because of the shortages.
I guess the best thing to do is get on the KIA Web site, Build the Telluride you want, and at the end use the feature that lets you search surrounding dealers stock to see if they have any, I have been extending the search area by adding zip codes from area's that are 300 miles away from me, but even if it does show a dealers has what you want, you run the chance of a Wild Goose Chase when you drive to said Dealer, only to be told that, Sorry Bud we just sold it.
Another thing that worries me is the fact that some of the workers maybe new hires or disgruntled workers who were forced back to work, which makes one wonder what kind of vehicles they are turning out.