Search heremisskimo is his user ID.
His name is Tony and he is in AK.
The Ion is a direct result of a "Fury" conversion.
The difficulty in converting a Fury is the weight. It is a bit heavier and unless you are running it on 14s or something like that (Tony is doing that) it is kind of enemic in 3D performance compared to the Ion-X.
Now though with the less expensive CC HV controllers and the big Pletti and such I suppose you could convert one for a reasonable price and get decent performance out of it.
So I guess it all depends on what you want in the way of performance.
Myself I was considering converting mine to electric for camera ship work but in the end figured it was more cost effective to just get an Ion.
You can buy the conversion kit to make a Fury into an Ion also.
Fly Fast....Live Slow...