I'm the second owner of my Vintage Speedsters car, which is said to have been built in 2017. It did not come with a build sheet so the only clue to the engine internals is https://www.flickr.com/gp/farsightful/d61518 , the lettering "1914" on the hidden side of the fan shroud. If your speedster dates from the same era, and has the same lettering, I'd love to have a copy of any documentation that accompanied the delivery.
If in return there are any details about my car you'd like measured or photographed for comparison, I'd be happy to reciprocate.
Bill Kennedy (wrkinprogress)