The version of Magic-1 for the Logisim Evolution software is now ready to test.
It doesn't include the microcode or software for now.
About the implementation:
The implementation follows the circuit as much as possible, except for some functional substitutes.
The higher level schematics aren't much clean.
The original logi7404ic.circ library was a bit outdated, but the one in my github account is updated to work with version 3.4.1 of Logisim.