For hoop inlays you have two choices. The first being Delmar reproduction 60's Oyster Black wrap available from places like Precision Drum. That is actual polyester acetate drum wrap. It is reasonably close but not a perfect match. They do offer precut inlay strips.
The second option would be either Bumwraps or Walopus, both of which offer a version of Oyster Black Pearl which is created from scans of the original wrap. They also offer precut inlay strips.
A third option would be to harvest wrap off a vintage drum and cut inlays from that but that's a rather drastic one. You could also possibly luck into a set of original inlays or hoops with the inlays intact but they are bound to be pricey if you do.
I was in the same boat (missing inlays) many years ago when I bought my first OBP set and actually have replacement inlay strips from Precision on one of my Oyster Black sets. They look ok but are not a perfect match to the original. I purchased them nearly 20 years ago so perhaps the newer batches are a bit closer of a match. However of late I have considered replacing them with ones from BumWrap because I think they would be a better match.
Samples are available from each of these places to make up your own mind as to what would work best for you.
As mentioned above the online serial number tables are inaccurate. I wish they'd either delete them or correct them. Particularly the one on Ludwig's site which they simply copied from another source but that people assume must be correct since it is Ludwig (Ludwig kept no records of serial number back in the day).