How to repair bottom diaphragm connection of Eminent Technology LFT8 planar speakers

Thanks.  Here is the link to the pictures of the terminal post that came off.

https://systems.audiogon.com/systems/9679

These are great ideas. Thank you!  I ordered a conductivity pen with silver ink which looks similar to the items shown above.  However, you will see in the pictures that there is tape covering up the trace printed on the diaphragm, so I think I  need to remove part of tape to expose the silver trace to allow the silver ink to connect to it. 
 
Also, there is no solder connecting the trace to the bottom of the screw posts on the terminal board.  It looks like the screw posts just manually touched the trace with no solder between them. So I will need multiple layers to build up the connection to touch the bottoms of the 6 screw posts. 
I emailed Bruce Thigpen and he said to replace the entire diaphragm at a cost of $250 per speaker. I would like to try repairing the connection first to see if this works.