Welcome to Montana then! Somewhere around the 94 mile marker on I-90 is a Cracker Barrel restaurant. It will be on your right coming west. There's probably room in the parking areas there to find each other. Look for my Dark Blue (Amethyst) 48 pickup. What will you be driving? I'll watch for MO plates : ) There are several motels in the general area as well. All the usual chains.

Have a good safe trip!