Thanks muchly for the photos.
Although it has taken all day, at least I know why it has taken all day.
Learn from my errors.
Notice in BudW's photo above there is a larger hole and there is (probably rusted) hole for a screw and a small hole next to that. The large hole has nothing to do with this process. Its the one you can feel the easiest, but making a hole in your new headliner for that just makes you irritated that you spent all this time but didn't correctly mark the holes and now have an extra one at that location. Bleh!
Also, if you do add a radiant barrier, which I did. Please pay attention to where you put the cut outs so you can get to the roof screw holes easier. I spent a lot of prep time marking holes and cutting away radiant barrier --including the foil so this would go smoothly. Only problem was, I had turned the barrier upside down from how I was going to install it. Doh! So my cut outs where in the wrong place. Which means BudW's picture suddenly gave me great insight. I had everything right, but because I turned the radiant barrier over, I precut it wrong. So my 'guide' for hole location was wrong and nothing line up when I tried doing this by feel the first time.
1. The grab handle has a post/tab/hole in tab at each end. These posts are just about 14 inches apart. Makes the screw holes just about 15 inches apart.
2. If you already put the headliner in and supported it with a few screws and the dome light, and forgot to mark the inside of the car where these holes are located. Do no try to use your finger and stick it between the headliner board and the roof and 'feel' a guess where you need to mark these holes. You will be wrong.
3. Suck it up and take the headliner back. Temporarily put the side brackets that hold the header up in with screws. Mark each bracket about where your holes are. Make note of about how far up from the edge these holes are (2 inches, 2 1/2, whatever yours turns out to be).
4. Put in the inside bonnet at the back and the pieces of trim that go between the back window and side window. I could not for the life of me get all the screws and holes to line up. Did the best I could. Still don't have the bottom of the inside bonnet attached. Frustration level was too high.
4. Take the bracket back off and put the headliner back up. Since I have to do this by myself, I ran a strap through the front seat and over the roof. Ran another strap through the backseat and over the roof. raised the headliner by ratcheting the straps.
5. Stick your arm through to take the dome light and push it at an angle through the dome light hole in the center of the header.
6. Attach one edge of metal bracket trim. Attach the dome light screws but don't screw them in tight. Fuss with the front/back side to get the liner lined up and then attach the 2nd side of trim. Then the front.
7. Now whichever side you want to put the grab handle on first, remove that side metal trim. I then used an awl (actually I couldn't find the awl so I used my pointed soldering iron - cold) and poke a hole about where the post -- not the screw, where the post of the grab handle goes. Measure over about 14 inches and poke another hole. Dry fit the grab handle posts.
8. If you guess wrong on the post holes, give it another go. You won't miss it by much and small errors are covered up by the silver beauty bracket that goes on each end.
9. Once you have the dry fit where you like it. Take one of the silver beauty brackets and slide it on the tab at one end. Line up the screw holes. Make sure the post is in the post hole of the roof. Put your screw in. Ditto for the other end. Put the metal trim back up.
10. Go to the other side. Repeat the process -- remove the trim, mark the holes, dry fit the handle, slide on the beauty bracket, put your screw in, same for other end and put the trim back up.
It was a beautiful day all day. Birds, dogs, goats, frogs, sunshine. Even took a break to relocate the two rat snakes that had taken up residence in the wood under the veranda. So I am going to take a test drive and see if the trim stays up and the front left lugnuts stay tight.