I installed ESIX (Everex's SysV Unix) off of 40-something 3.5" floppies in the mid 90s. Naturally there were a couple of bad disks and the installation sat partially done for a few days while I awaited replacements to arrive in the mail.
IFMMSMV CD distr of '95 was around 48Mb, '98 (SE2 ?) around 100-110. With a bit of knowledge you could shrink the installed one to 35 and and 52 respectively.