IEEE-488 floppies for the CBM world are very rare and expensive. Why not just take a cheap VC1541 and expand it with an IEEE-488 connector, but without losing the serial IEC connector. With the TriMod CBM adapter the floppy can do both. It can be connected e.g. to a C64 via the serial connection, or e.g. to a CBM 8032 via the IEEE-488 connection.