I am from Ontario Canada and I have found the plastic sliding door tracks at millwork here in Oshawa. http://www.millworkhome.com/. I paid $10.00 for 4' kit.
As for installing do I really need a board in front and behind the tracks like the crossfire instructions or will liquid nails hold it in place without the bulky support?
I am hoping an adhesive like liquid nails or no more nails will hold it on it own. I want to avoid using acres as well. Just haven't had any experience with glueing plastic. I couldn't find aluminum tracks.