It looks good on the brake line move. Any plans to brace it in anyway? Vibration does weird things and could cause a chaffing/rubbing issue. You know more than me when it comes to custom automotive work, but the airplane mechanic in me is cringing a bit on that long of a tube not having any support.
i suspect its good. but a piece of strap say 14 ga welded to the housing to bend tab it in place, up top in the center of the housing with a piece of hose around it might not hurt. or maybe it will rub a hole in it.
the nichrome lines are weird when it comes to support i noticed.
but i been doing the ziptie through the hole thing mostly the last 12 years or so with it up in the rust belt... so maybe i am an idiot.