Anyway, does anybody know if C64 floppy drives will work with this PET?
Not really. 1541/1571 5.25" floppy drives used low-density disks, whereas the 8050 formatted a disk to 500 KB single-sided.
FWIW, you can get a PETdisk or petSD and use the SD card storage solution.
Truly,
Robert Bernardo
Fresno Commodore User Group
http://videocam.net.au/fcug