Time for an update, here's how I've been enjoying the chair in its original white finish but decided I'd better get it painted before cold weather hits again.
Gave the fiberglass a light sanding then hit it with galvanizing primer.
Today it's back to white as I wanted to have a white finish primer before painting it with color since the series used chairs were originally white.
Interesting to note the original finish (top photo) was taken with my phone and uploaded fine from my computer but had uploaded sideways in the test upload directly from my phone. So same photo different results depending on what it was posted from.