The front panel is without lettering. You could, potentially, get PCBWay to make you a front panel with lettering (use the CAD file from the GitHub page) but it might be expensive. That’s why I only have front panels without lettering and will add my own when I get to it.
The computer doesn’t fit INSIDE the enclosure, rather it sits on top of it. The enclosure is only used to organize the backplane wiring and for I/O ports.
OK, I see the picture here. The enclosure looks like it's big enough to hold the power supplies & cassette interface too. Possible to box the whole works in with aluminum or plexiglass panels.
The original had a standalone power supply but you can build yours any way you want to. If you can place the power supply into the same enclosure as the computer, along with the cassette interface boards, that would make a nice, compact computer.
Hello! The SCELBI has many I/O ports. To connect to a terminal, you will need an interface for that. You could use the original TTY interface board for terminals that support that. If you don’t have a current loop terminal, you can also use a current loop to RS232 converter such as this one: https://www.blackbox.com/en-ca/store/product/detail/RS232-to-Current-Loop-Converter-DB25-Female-to-Terminal-Block/CL1090A-F