Today I put in the rear floor mat and completed a few more interior panels. The floor mats are reproduced, but for something that will get abused they’re expensive (expensive shipping too), and the reproductions are known to wear out quickly. So to get around all of these problems I instead used a big (4’x’8) generic rubber mat that I already had; I think it’s sold as a horse stall mat, so it should be very durable. The mat is also very heavy, so it should help the inside of the bus sound less like a big metal trashcan, despite being built like one.