Ackman - do you recall the size of the fittings used on the master cylinder in the first pic? Tell me if I have this correct -
1) Master cylinder has a 3/8-24 I.F. male to female fitting coming out of it.
2) This fitting has a 90º elbow threaded into it with 3/8-24 threads
3) Brake line appears to be similar to one I viewed on
www.jegs.com, which was a 3/16" brake line with 3/8-24 I.F. male fittings, or maybe you used their 1/4" line with 7/16-24 fittings?
4) The input to your mounting point on the frame (where original master cylinder was) is the opposite end of the rigid tubing with a slightly longer 3/8-24 I.F. male fitting, feeding into an adapter with 3/8-24 I.F. female to male going into your cannibalized master cylinder threads.
5) Opposite (wheel side) side of the cannibalized master cylinder is 10 mm banjo bolt/fitting with t-port for the pressure switch, which then goes on to the input of your caliper.
When you wrote that you cut the master cylinder in half, how did you work around the little pinhole in the top of the 'duct' of the cylinder going up to the reservoir? I have my old cylinder taken apart right now trying to figure out how to get the metal 'duct' out of there/separated from the reservoir assembly. Where exactly did you rethread that piece to get everything to fit/thread together?
Do I have a good grasp of what you did? Have you had any issues (leaking) with the rigid tubing with the I.F. fittings? Did you use a tubing bender to shape it? Did you fabricate the flare ends yourself, or was length of rigid tubing purchased with the fittings already attached? Is your rigid line 3/16" or 1/4"? If 1/4" it would seem your adapter fittings are threaded for 7/16-24 to the 3/8-24 flare fittings. If you used a pre-fabricated piece of rigid line, do you remember the length you used?
By the way, your setup doesn't look bad at all. I would probably clean up the front a little somehow so doesn't stick out as far, but you have nice bends going around your floorboards v. having a piece of flexible line curving around the frame (no offense Surfor Chop as I might go that route still), and then routing back to the junction point.
Thanks much.