@ACR Ethernet NICs for Z2 are not rare, that's bs.
@Florida
Connecting the hardware is no problem but I don't think there's any driver...
Parallel or serial port is possible with another machine (usually a PC) set up as a router with Point-to-Point Protocol (PPP). You could use an old 386 running Linux.
A 1 MB A500 will leave you very little memory to work with once the IP stack is up.