Acoustat Panels

I am a speaker builder and have inherited some ACOUSTAT 2 + 2 ELECTROSTATIC speakers. They have the Medallion mod (all Mylar or polypropylene caps). They have a dying transformer and I want to repair or sell these for parts. It frustrates me cause I heard one (the left one) and they were pretty darn good! Looking for solutions. PS If I can help on speakers, I would be glad to, I build mostly high-end stuff. Thanks