Not yet, It was getting late and I was beat. In looking at the 2nd PP and 4th pic (flywheel side of disc) one can see the same circular ring (pattern) in the middle of both. It's there on the FW as well but not as prominent.
The pattern being more visible in the PP and FW side of the disc makes me suspect one of them wasn't flat.
The ring is also visible on the flywheel but one has to really look closely for it to show.

I have to now establish why the z bar is not straight and level which I suspect may be the Bell housing pivot mount. Will likely have to wait until the trans is back in for that adventure. Wish I had a stock pivot mount to compare it to as well as a stock z bar.
thanks to all again and any input is appreciated.