Drilled the front seat shoulder harness attach bolt holes in the cabin top. I need a larger countersink bit to finish the job. I installed the two headliners. I had to trim the front bottom corner of one to get a good fit. I drilled the shoulder harness bolt holes in each headliner. I then began minor modification to the upper portion of the bulkhead supporting the middle interior side panels. Also reinstalled the lower closeout panels below the mid side panels.