How about Yahama YB100 or Kawasaki GTO? If your brother has a taste for two stroke, go for these bikes.....very durable, comfortable, no vibrations, easy mechanic availability specially for Yahama and spare parts are also cheap for two stroke motor cycle.
The down side is low petrol average and these don't come new so you will have to either find one in good condition or get one and restore it to your liking.