If you are planning to visit Tono Furusatomura, you may want to skip the Chiba Farm House since you will see a lot of similar farm buildings there and it's a lot nicer. But if you don't have time to go there, this is closer to Tono and gives you a taste of old farm houses in rural Japan. Half an hour is enough to see it, and it's about a 20 minute drive from town. Furusatomuro warrants a couple of hours and has a nice restaurant. It takes about half an hour to get there so you can easily spend a half day on it, plus Fuksenji temple is nearby and is also worth a stop.