Coomarlin,
Sullivan sells the multi-sized 4/40 threaded rod package( 2 4 inch, 2 6 inch, 2 8 inch, 2 12 inch I believe). I bought one packet, and was able to use them for every piece of linkage. I had to cut off about 1/2" or so on either end to make some line up, but still had plenty of thread for the clevises. If your hobby shop carries them, pick that up and use it. Beats the heck out of trying to cut your own threads, or soldering clveises.
Steve
You know, we are coming up on the most read forum on here (the Aeroworks Edge forum has more views).