Hi rhino, I am a rod builder in Va Beach. Sorry to hear you broke your rod!
There are some techniques used by rod builder to repair broken rods such as yours, but when the rod breaks the original action and feel of the rod is lost and is irrecoverable. Some will argue this point, and thats fine - but the fact remain that additional material will need to be added to the blank to fix the break, this is undisputable. This additional mass affects the "feel" of the rod.
To fix it a closely fitted sleeve is added over the break, and bonded to the broken area with epoxy and thread. In order to slide this sleeve over the break any guides that are in the way will need to be removed, then reattached. The cost of the repair? Being conservative the cost of the work will exceed $45.
If you really want it repaired best to send the rod back to the manufacture and have them replace the tip. Regardless, it is going to come to very near the cost of a new rod.
Lou