Convenient way to get files into Z80-MBC2 UCSD volumes

[z80micro-mc]

I have got my Z80-MBC2 running your UCSD port. I can create additional volumes by copying one of the existing volumes, using Filer Zero to empty the copy fine. But how do I transfer files into the system given that it does not have a floppy interface nor is there either a Kermit nor an Xmodem for the MBC2 included in the build set?

Thanks

Peter