I've had a feed like shown in your second pic (post #1) running under the fender for, um, 30 years or so. It's in split loom and has held up without issue over that time. I also don't use the bump stop/shields on the car either. Took them off for suspension work and never put them back. No issues even with wheels up launches.
I'm definitely going to do it that way. This weekend we're going to weld up all of the holes in the engine bay panels, then I might borrow a buddy's Greenlee hydraulic punch so I can get a perfect oval for access on both sides, grommet it, and add a QD.
