An expensive day. Tire was down to 22 psi this AM, so called NTB in Wichita - they have a tire that'll fit. So, aired up the tire and started backtracking via KS-96 at an easy 56 mph. the tire stayed up, and at least I was getting good mileage. Yep, NTB had a tire, and I was out in an hour, less $200.
While waiting at NTB, I had time to change tonight's reservation to Liberal KS. It's US-54 all the way. Stopped en route to tour Greensburg, KS, & see their rebuilding effort. Then on to Liberal, arriving about 4:30. Dinner at Cattleman's Cafe - you can't go wrong with chicken fried steak, meatloaf or pot roast.
Tomorrow we get back on schedule. It'll be US-54 to Guymon, US-64 to Raton (with a side trip to Capulin Volcano), and I-25 to Las Vegas (NM).
325 miles today, 647 for the trip.