Hang on, hang on...
The list of tools that were originally supplied with the cars may be found in the respective model's Parts Lists. The list, with some description, may also be found in the Concours Guidelines.
The kit for the BJ8 is very sparse, so you're in luck that you would have very few items to find if you decided to assemble a kit. Basically, there were only three items, plus a jack and jack handle:
Spark plug spanner.
A tommy bar.
Knock-off hammer.
That's it! Now of course there were variations if your BJ8 had pressed steel wheels or octagonal knock-offs, but for the vast majority of them, the kit was just those three items (or five items, counting the jack and jack handle), and the bag that held them.
The Supplementary Tool Kit was something altogether separate from the kit that came with the car. The Supplementary Tool Kit was an option that was available for separate purchase. See attached photo.
[The late jacks for these cars typically sell for $100-300, as far as I have observed, and I will quite happily sell my last one for $1000, if anyone would like to pay that much! I also have a very few reproduction jack handles for sale (I had them made about 15 years ago) for $20 each, postage paid in the USA. They are a simple 18-inch length of 1/2-inch metal rod, cadmium plated, and with the ends slightly beveled.]