As an addendum to the tracks, I will again repeat, they are really well detailed, but this should give you an idea as to the work required. The basic issue is tht NONE of this is click, it just slides together, and glued, more on that later. Every link will basically consist of the link, a guide horn, and a cleat on the end (Names are likely incorrect. Just go with it...) So each one is tiny and must be clipped off and cleaned with a hobby knife, sanding stick, or both:
guide horn
links
cleat
note that the instructions tell you to attach several of these at one time, but the issue is how to cleanly remove them from the sprue once attached? There isn't really, so I found it better to cut/pile them as shown.
As stated earlier, none of this clicks together, it is all my friction, or rather, it falls apart SUPER easy, so I basically glued several guide horns and links together, maybe 4 or so, then attached the outer cleats, gluing as I go. Total PITA, but the end result admittedly, is quite nice. this run of about 26 track links total took nearly an hour of work, after everything was separated & cleaned
Point I am making is, although these are quite good, and less than half the cost of metal links, the metal links I think will not require nearly this amount of time. So I guess the trade-off is one of time/money, eh?