Finished the trim tabs up through priming after putting the 15 degree bend in the lower edge. This is one of those steps where I do use primer on internal parts; the reason for this being the same as the trailing edge of the elevators; it's an enclosed component without ability to visually inspect internally.

I ran out of adhesive and am still waiting on it to arrive, so I'm moving on to the tail cone and will come back to close out the tabs when the glue arrives. All that remains is the riveting, which is the easy part really.