Door trims are next on the list of things to do. One set I already stripped of paint had hardly a scratch on it. The second set you can see they must have driven a lot with the window down and the elbow out the window. :) Get fined for doing that here now a days! I needed the door lock button to come through the trim so tried a few different ways. The rear most one was using the donor piece but it jammed the button as the angle was not right. Tried a grommet and raised the metal to get it flatter, but still didn't like the look. So think I will go with the closest one with the flared hole.
To make the flare I practised on some scrap first. Ground the top of a tube, that had the inside diameter I wanted, to match the curve of the trim. Then simply drove a rope splicing spike through the hole. Would be 35 years since I learnt this craft when doing my farrier training! Could also use a podgy or round bar shaped to suit as well.
Looks better than just a hole with a sharp edge. The hole was drilled 10mm-3/8" with the final hole size of 13mm-1/2". I tapped the spike in a little from the backside as well to turn the flare outwards so an edge wouldn't dig into the button.
I think this gives a neater finish than the grommets. Using a different frame for the front and rear sections to make up the 115mm-4.5" longer doors, meant the mounting holes in the middle were unevenly spaced. Originally thought I could live with that when I cut them this way, but turns out I can't!
Using my trusty old cobbler's hammer, I hammered the flare flat from the inside. Also noted the now smaller hole size to help with making a new depression later. A quick tack over a big old brass cable lug fills the hole. You can see how the underside of the top piece comes out using this technique.