I found two more at Freddy’s for discount prices, but that was all that materialized. Up until the pandemic, I checked the toy department during every shopping trip for the two that I was missing (which included the top of the Death Star with the Millennium Falcon and the main dish with a speeder bike). Once we decided to isolate, I caved and bought those last two pieces on Amazon.
Unfortunately, that not only meant they were more expensive (being full price rather than marked down), but because they are not emergency supplies, their shipping was slowed. The top piece arrived almost two weeks before the last one arrived. However, today the wait was finally over, and I was at last able to feel that satisfactory click of all of the pieces fitting perfectly together.
Now, witness the power of this fully armed and operational battle station!