Hi,
There has been quite a lot of threads lately about floor, aluminium or steel sheets, easy to find on the forum.
About the pedal, there is a group order for pedal set, you can check this thread:
http://www.haynes.co.uk/forums/showt...ighlight=pedal
Solid bias balance bar ? Never heard about that, have been in the "braking business" for a while, and I can't see how it can work, except putting an adjustable one, adjusting for a good balance, and then put a solid one with the exact same position. Sounds strange to me but I can be wrong... Or just trying different front/rear master cylinder sizes... but it looks very complicated. Can you tell us more about what you plan to do exactly please ?
Cheers.