Thats the tool alright, seems like a lot of $ but then I bought mine like 10 years ago from my Kawi dealer, if I remember right I paid like 50-60$. Its one of those tools you don't use often, but when you do it's really nice to have, I guess its like alot of speciality tools, you don't need them until you need them.
By the way I like that bike with the radial engine.