Dave,
Yes on question 1.
California & Oregon Coast Railway carries nickle silver rail from Llagas Creek as well as a complete line of track products. They both advertise in Garden Railways magazine. I have delt with Stretch Manley of C&OCR numerous times and he is a good guy to deal with. Their phone is 800-866-8635 or E-mail [email protected]. He does have a flyer and also sells Kadee couplers and Ozark Minatures.