This is super-impressive.
ICON worked with Stealth EV to convert a '49 Merc using a Tesla model S battery pack. If you've seen ICON's work, you won't be surprised by the amazing attention to detail.
EG: I've never seen a conversion look like this under the hood:
Here's a brief article, with more pics:
https://www.motorauthority.com/news/...-by-tesla-tech
And here's a more in-depth video, but full of interesting info. (Excuse the part mid-way through where the engineer discusses the conversion of his own Firebird using Tesla components!)