Here's a photo of my GTR engine coming together. The original pistons are being used, as they are in very good condition, as are the cylinder bores. New rings are installed, along with new piston pins and circlips. I'm currently repairing the generator wires that lead to the harness, and converting these to plug into a modern 6-pin (5 wires used) reg/rect assembly. Thanks to Steve Reed who installed a new labyrinth and rotary valve seals.
Also plan to get the frame up on wheels over the next few days. The forks, swing arm, and shocks are in place, and will post a photo of it soon.