The bitsavers
archive is 267 Gbytes.
So at 4.7G per DVD, it comes out to almost 60 DVD's.
I would suggest using
Blue-Ray media, at 25GB or 50GB per disk. We're then
down to 6 or 11 platters.
It would only be a bit more than a million 8" SSSD floppies.
Cheapest might be to send it out on a 1/2TB hard disk.
If you worry about survivability of transport abuse,
then it could easily be resent if it arrives destroyed,
OR use a few 2.5" SSDs,
although those should be copied to spinning rust on receipt,
as their longevity is uncertain.