Chances to find original PROMs etc. are extremely low and many have search for it for years. And it will not be cheap.
But I know three owners of original PROMs who have no use for it. Unfortunately they do not want to sell. If there are 3, I'm sure there are more somewhere.
Whatever original Apple-1 items you have, you can contact me.
We can talk about the price. Please send a PM or contact me otherwise - I am easy to find.