I gave you a link to the Proto87 Stores on the other thread. Here it is again:
PROTO:87 STORES AND ACCURATE MODEL RAILROAD TRACK. Proto87 carries virtually everything you need to handlay track, as does Fast Tracks. Both are on line stores only.
Clover House and Fast Tracks offer PC board ties. Both are mail order/on line.
Walters carries the complete Micro Engineering line (rail, spikes, flex track, turnouts), and their HO catalog also lists other suppliers of items like gauges, turnout kits, ties, and ballast. Items carried by Walters are often stocked at better hobby shops, and can be easily ordered by other shops, or direct.
Micro Engineering, Railway Engineering (see
Railway Engineering), Kadee and others make track gauges. Xuron makes an excellent rail nipper. You will also need a good pair of needle nose pliers for driving spikes. A 40 watt soldering iron with rosin core solder and some rosin flux worked fine for me. Some needle files, a small flat file, and hack saw blades are all tools of the trade. I never had one, but also recommended are a jeweler's saw and a rail bender.
just my thoughts