Better solution is VMEM, on my Blizzard 2060 with FastSCSI2 and IDE HDD (by converter IDEtoSCSI) I have 8,5 MB/s, so it is much faster than Fast Ram on Zorro II.
And Deneb is a must, usb lan card will cost you only 5$.

And you can connect modern wireless keyboard/mouse, pendrives, hdd etc. Plus you can make your own custom kickstart and put it on Deneb.