Can't help with the question but I know that a couple of folks have done this.
Just curious about what it's all for? Seems a pretty expensive mod to me when there will be absolutely no performance benefit - after all, can anybody truly say their riding capabilities have outstripped the performance envelope of a pre-2005 swingarm?
So if it's just cosmetic, the question is still why? After all, a pre-2005 bike with this mod might look like a 2005 bike, after you've spent a fortune on it to make it look like one, but it will still be a pre-2005 bike and have the resale value of a pre-2005 bike.
Doesn't it make more sense to PX to a 2005 bike and put the money you'd spend on mods towards that?