I thought I'd finally contribute here. I'm resuscitating an early 1969 2002 here, and since it's a mixture of Euro, 1600 and 2002, some of the smaller parts are NLA.
1. For the nose panel grommets where the headlight and horn wiring goes through, I have found this: https://www.ebay.com/itm/Original-1-25mm-Lucas-Black-Rubber-Wiring-Grommet-x-2-Part-No-863123/141459890646?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
I haven't installed it yet, but it should work well.
2. My car has been sitting for so long, that I have decided to re-do all ,of the brake lines with these connectors: https://www.amazon.com/gp/product/B01KNGVV0S/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 and copper/nickel tubing. This stuff is so easy to work with, you can bend everything by hand.
This tool https://www.amazon.com/gp/product/B07W8GGTYS/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1 is fantastic for making the flares, throw all of your other tools away for this.
Finally I found that vinyl drip line tubing makes for a great insulator when putting the brake lines in the body clips.
I hope this will help someone out.