Next I wanted to mark the position of one of the rails, in reference to the ties. So I pinned down some loose rail, all at about the same position from the end of the ties all along. I tried to get a nice an smooth flow.
Once I was satisfied I marked the position of the rail, on the ties, with a pencil. Now I can lift the rails for feeder soldering as I go along, but still easily get them back in position with help of the marks.
The rail will not sit directly on the ties but on tie plates. I use Grandt Line code 125 tie plates, and Micro Engineering small (1/4") spikes.
Keeping the rail on the previously done pencil marks, the spikes are pushed or driven in with a pair of pliers.
Here are the first few plates and spikes in place - two spikes per plate - one on each side of the rail.
Once the first rail was done, I continued with the opposite rail. Its position determined with an NMRA standards gauge.