This has been my little buddy through all this. Chop saw has saved some time.
Connected the B and C pillars together. It took some time to get the fishmouths (notches) correct. They angle inboard from the B pillar towards the C pillar
The A B and C pillars connected. Along with the spreader bar between the A pillars. It has taken some time to get all the joints correctly. A ton of grinding etc.