I would be very careful with the Truss Rods. They are custom to breaking anyway and with the extra tension on them from the light it could very easily break them. They are hollow tubes of aluminum. And very expensive to replace, When and if you can find them.
Just a friendly gesture. Dave S. here on the cabe had a set that had a couple breaks in them for sale a few days ago and they were still priced at $150 for the set.
http://thecabe.com/vbulletin/showthread.php?61189-Wingbar-Truss-Rods
Nice looking bike, you have done a good job.
JKent