The buggy is all stripped down, and here are some tell tale signs that this is an early vintage kit (there are more, but these are easy to spot):
Firstly, the gearcase has tabs that the rear cage mounts to
The front upper and lower arms are “thinner” than the later ones
The front uprights use flat head screws instead of tabs as the spring retainers
The rear arms have a “space” for a bearing on the inside, despite not having a bearing in there (the manual doesn’t suggest to put one there either)
I did some research and asked some questions to learn this, so hopefully by passing this info on here, it may help others in the future to distinguish what parts they have.