Redoing A Disk Brake Swap (got leaks/need input/help)

The previous owner (PO) of my '69 Barracuda followed the forum here and installed '75 Dart front discs. He mostly did all the right things EXCEPT he used all used parts (master cyl, calipers, hoses, brake lines).
Fast forward 12 years from when the PO did the work and here I am replacing all the master cyl, hard lines, flex hoses and calipers. (lines and hoses are stainless steel from Fine Lines).

I got everything installed and bled.

Right front at the hard line to flex connection leaks.
I've tightened it as much as I dare.
&
The flex line banjo fitting leaks.
I've put a new banjo bolt and copper crush washers in and tightened it within an inch of it's life. Still leaks at the crush washer between the banjo fitting and caliper.

I've taken it apart to look for imperfections, burrs, or bad line flares; none obvious.
Everything else has sealed nicely and doesn't leak.
Am I missing something?

TIA