In my experience, in Europe, Tesla UK wouldn't sell me the -D parts. I tried, twice, and they supplied the -C parts instead. When pushed I was told that there had been a directive from up high that they were not supplying the -D parts until they had reduced their inventory of -C ones.
In the end, following advice from
@Tevo Solutions, I ended up switching the parts request to 1125106-50-J and 1125107-50-J respectively, which I've been led to believe are equivalent to 1495864-20-D and 1495865-20-D. For whatever reason these parts were available to buy from Tesla.
The -C parts, as mentioned, fix the problem with tape over the 3 holes in the PCB. I don't know whether that fixes the problem effectively, I'm sure i saw in a video that it can still have light bleed.
My attitude with this was that if I was paying for replacement cameras (I tried getting them done under warranty, even providing examples where others had done so, with no luck) then I was sure as s**t not going to pay for cameras that didn't fix the problem 100%.