Kind of a combination of some of the above suggestions, but what about a "President's tour"?

Sunday night - drive out to Abilene
Monday - EISENHOWER: drive back to KC and see TRUMAN in Independence. Night in KC and enjoy some of that BBQ.

Tu-W: Go one of two directions: across the state and to Springfield, Illinois for LINCOLN. You could see Columbia & St. Louis this way.

Or, go south to Little Rock for CLINTON. The distance really isn't all that different from Springfield. A good place to hit (your friend would know it if they have done the Ozarks to death) is Eureka Springs, Ark. If you're into that kind of thing, Branson is on the way.