Japan Motorcycle tour reloaded #2

Two and 1/2 weeks until I leave now so spent some time further researching this weekend.Found another motorcycle rental shop, actually there are many however found one close to where I will be staying in the western suburbs of Tokyo that rents Buells and BMWs.A BMW would make a good choice so have asked re price and insurance and if they rent helmets and luggage which the shop in Shinjuku with