Monitor Cable
You can order SCART cable here.For PSU the ZX Spectrum PSU can be used, the 128K or +2 (grey) recommended.
But if you want a original PSU, I can look about my spares.
About the ROMs: upgrading the onboard EXOS ROM of your EP64 are highly recommended. Many-many programs are incompatible with EXOS 2.0 because the more popular EXOS 2.1 are using different memory locations.
The best way is using my unofficial 2.3+ versions, this is also including the BASIC (many bugs fixed in the EXOS and BASIC). For using this need a bigger ROM (64K instead 32K), which is need
one more address line connected. But if you able to build in the 64K expansion then one wire not problem for you.
If you use this EXOS then the full 64K space free in the cartridge.
The best way is order the SD Card adapter cartridge. With the upgraded EXOS you have a 32K free space in them, then you can install ASMON here.
But if you need I can make ASMON cartridge for you.
Another way if you want a original ROMs, then I can send a original EXOS 2.1 ROM, and cartridge with original BASIC ROM + ASMON EPROM.
I have a 64K expansion card which is removed from EP128.
