[Bill Bacco]

Well I ended up doing my own repair.  I was able to salvage the rigid part of the cone, bought a rubber speaker surround and glued it all together.  It really sounds good now.  Below are some words and pictures showing the process:

Bill

Repaired bottom of cone near coil with RTV Silicone Gasket Maker.  Verified clearance of coil in frame prior to silicone drying.
   

Top view of cone after repair
   

View of empty speaker frame
   

Used compass to mark where cone needed cut to match speaker surround inner diameter.
   

Applied glue to inner edge of speaker surround