Thanks for the nice recommendation! We have aluminum, brass, and nickel silver rail. The nickel silver rail you were referring to, does hold up great with much less required cleaning than brass if using track-power and frequent use... and the plastic ties have had UV stabilizer added for many years now, so gone are the old beached-white tie strips when pervious ownership was having them made.Do you want to build US or European prototype? If US, llagas creek nickel rail would probably make you happiest because it does not corrode as much as brass or aluminum. So many rail products have come and gone. They have stayed.
This looks like a great yard to start with and what an awesome view at your 'overlook' of the river! Please keep us up to date of your progress, perhaps start a new thread in the "Track, Trestles, Bridges, and Roadbed" or "Gardening & Landscaping" sections of the forum when things get moving.