I guess you know all this Colin, but if you're running respectable lap times on track and go for either the Firestorm or the TL1000s I think you might be disappointed.
The Firestorm is compromised by budget suspension and was never really designed as a track tool. A good road bike in a slightly more sedate way, but the only people who've done anything on track with them have thrown away everything except the frame and engine and started again!
As for the TL1000S, I rode one and loved it as a road bike; a fantastic engine that really pulls, addictive top end as well as typical V twin stomp. But again it was compromised by dodgey suspension, that rotary damper never worked and a whole industry grew up modifying or completely replacing it. It also has to have a steering damper IMHO.
The 'Blade will give you Honda quality, fantastic handling and a quality engine. I suppose another alternative might be a '98 R1? I owned one for 3 years and it was fantastic, mental as anything when you were in the mood but tractable and torquey when you weren't (it outperforms the new R1 everywhere below about 10000rpm in terms of bhp/ft-lbs) Performance Bikes recently took a 98 model, uprated the suspension and added a full race exhaust system and ended up with a bike in the ball park of the current model.
Plus it looks fab in red/white!
Mitch