Specifically, how are you managing the brake pipes from the master cylinders to the chassis rails?

I've just got a compbrake floor mounted pedal box to replace the standard Sierra one in my Tiger CAT. Mounting the pedalbox is fine but I now have two master cylinders mounted at floor level instead of one dual mounted on the bulkhead.....I'm re-piping all of the lines, and going to a Willwood hydraulic pull cylinder for the clutch, but I'm not sure about piping into the master cylinders. Should I use a flexi hose to get from the cylinder to the chassis? Do I just Tee piece the fronts together and then take one line to the cylinder or should I Tee them at the cylinder?

I'll post some pictures up later of what I have just now.....

Thanks,
Oli.