The missing rings were on the work bench, but they were the ones my buddy gapped too big.
He was supposed to grab new rings from another ring set, file-fit them and put them on the piston.
I think Murphys Law and distractions, and having my friends 11-year old putting the ring compressor on the pistons all
created the mess-up. But Saturday, pulled all the pistons, check all the rings, installed new rings on #3, and put it back together.
Sunday (yesterday) got the engine back in the car and running (at 9:30 pm.) I'm sure the neighbors like hearing the engine fire up with no exhaust at that time of night.