The complete system list at least for while

I am not so organized  but am so confident to write down the topics of my project after I already started it.
They are a sketch by this they can change any time.

1 - The z80 clock
2 - Addressing system
3 - Static memory(SRAM) 32kbytes minimal
4 - Eprom memory(8kbytes)
5 - I/O system(bip sound, rs232, spi interface)
6 - SDcard (at least 8gb)
7 - keyboard and 6 display 7 segments and LCD maybe 4lines 20 characters
8 - CPU Z80 8Mhz and I/O expansion bus