Built the crew hatches on the top (the back one still needs the last piece, I mucked it up), and attached the headlights to the re-smoothed front surfaces.
The last two pics show the current state of the complete model. The second of the two shows the rivets I am adding to the model. I make them from sculpy that I press through a sieve I made from cardboard, they are easy to then pop out, bake and attach.
I guess this is the last 20% of the work. That takes 80% of the time