If you are serious about #139's restoration... or even just a good preservation.... I would contact Nate at Buckeye Resto.. He excellently restored #140.....1 VIN# newer than your car, and that car was in way worse shape than yours. #140 now does the show circuit for the past couple of years... #140 is Nearly identical to your car in almost every detail.....Same color, same engine, same interior, just it has a White vinyl convertible top, not black like yours. I highly respect Nate's work, though I don't personally know him. I've met his parents a few times though. Very nice people. Nate's is in his early to mid 40's in age I believe...and very talented.
Here's a short video of VIN#140 right after Nate restored it.
Here is his contact info:
https://www.facebook.com/pg/Buckeye-Classic-Car-Restoration-156562391081948/about/?ref=page_internalE-mail: nate@buckeyeresto.com
If you want some pics of the "Restored" VIN# Number#140... Shoot me an e-mail at: NEFaurora@aol.com I'll be more than happy to e-mail you some pics.. Either way, Nate is the right person for the job.
Thanks,
Tony K.