Good progress so far. Best to get the mechanicals straight before working on cosmetics.
I had an oil leak from the clutch push rod seal, seems I'd over filled it causing pressure in the system, once relieved of some of the oil to the right level, no more leak! Hope the braided hose works out for you. New brake and clutch levers look great! I have the cheap Chinese ones, they look great too and seem solid so I am happy with them. I used a clutch bracket from an R6 as I originally had the levers on my R6.
That's good mpg, I've no idea what my 550 does, maybe next time I fill her up I will check.
I moved my clip ons out to about 80 deg, gave a much easier ride. Re: gauges wiring, just disconnect the blocks and leave the looms connector block in place in case you change your mind, easy to put back on. I wouldn't go cutting up your loom, causes more problems than it solves.