Doom, I can honestly say with your mods I'd rather be on your bike. The fz is a great bike, but in stock form, its one I can outride. Being a former racer, deal's gap regular, and track addict for the better part of the last quarter century, I am a little nervous to see what happens with the stock tires and suspension. Plus, since I don't have a trailer or tow vehicle, I'm riding to the track, which is something I've always advised against.
Hopefully the day will be smooth and incident free. Fingers crossed.