I just got done towing the car as far as KC over the weekend. Nothing of interest to report as far as massive construction or anything else up to KC along 90/71/70. However, I did see this on another forum.
For all y'all coming from the east, if you're planning on driving through KC you should know that MoDot is doing bridge work on I-70 in Kansas City. The west-bound lanes of the bridge just west of Royals Stadium is divided into two very narrow lanes & traffic is very slow through there. I can't say if they'll be done by the time you get here but its something to keep in mind. Also, the transition ramps from I-435 to west-bound I-70 are closed (on the Missouri side of the loop).
So watch out.