I used this virtual machine at one point, but I stopped.
The virtual machine is starting to show its age a bit (Arkos 1 only, cpctelera master not dev). Even the Linux system must need a massive update when you launch it 
Since @Arnaud6128 has worked a lot on cpctelera_next to integrate a newer, more efficient sdcc, I recommend setting up your own Linux virtual machine and reinstalling cpctelera-next.
Or you could use Cygwin (a Bash environment for Windows), which would let you stay directly on your machine—that could also be a good solution for your projects. The installation docs are in cpctelera.
That’s what I mainly use (I switch my projects between my Windows Cygwin machine and an old laptop I rescued from the trash running Lubuntu; it’s an i3-7000 and works really well).
All the other tools can presumably be downloaded/installed separately. You can even pick and choose whichever ones you prefer.