Engine Bay

JDMopar said
Looks like you’re doing a great job so far with cleaning. If it were mine, I would just finish cleaning every inch of it and leave it until you strip the car down to nothing for all over paint. Clean and paint the k frame black. Take the brake line across the firewall out of the tabs and clean it with a scotchbrite pad, and then clear that with a rattle can. You may experiment with hand buffing the fenderwells and firewall out, but be careful with your finger tips around spot welds. I’ve had a hunk jerked out of a fingertip before by a sharp place sticking up from the weld! Keep up the good work!

Clean it and leave it until complete paint job is done seems to be the right, majority advice....and, not that it matters, but I was regretting getting rid of the yellow factory / assembly line "X's" and yellow thumb print on the firewall..
I will probably paint under and around the battery tray.. it's mostly bare metal and surface rust there.. After I paint it, I'll try and dull it out and give it a bit of a fake aged, patina look so it doesn't stand out too much.