Have you tried posting to the BPL forum? Or know someone who is a member who could post the request for you? Asking my draw the attention of someone there with a rod or rod parts to sell.
Here is a link to a post in the Gear Swap section last year.
http://www.backpackinglight.com/cgi-bin/backpackinglight/forums/thread_display.html?forum_thread_id=65822
I may be mistaken but it seems that at one time Titanium Goat made some kind of adaptor that permitted use of the Hane sections with one of the trekking poles they made. I never had a Hane rod but it seems the TG adapter permitted substituting a trekking pole for the Hane handle. Or maybe I am completely mistaken and their rod was completely different. Titanium Goat has now discontinued this and turned their trekking pole and rod biz over to
http://www.rutalocura.com/Tenkara.html
The cottage industry guys are often able to be more responsive than large companies. If their Clarkii rod is based on the original Hane rod design perhaps they could supply a matching section 7. Or something close for the Frankenrod.
Long shot but maybe worth asking.
D