Happy to make a bit of progress today.
New valves and springs installed into ported head.
And pistons installed also. The wrist pin on piston #3 was a bit tight sliding into the piston. The play is fine on the rod. I hope this is OK as the others slid in very easily.
I sometimes find that I've ordered extra parts. Here I have three base gaskets: Cycle-X kit, Honda OEM, and Athena kit. The Athena gasket is thinner (0.48) so I won't use it. I will use the OEM I guess. Installed dry, from what I've read here.