In DIY CNC world LATER=NEVER , take my word on that. Stuff might be free but what? Do you have a breakout board, PSU, motors piling around? Or you have to buy them . At the end of the day you will have to buy much stuff including software.

But if you are up to making a worse than Chinese cheapo machine which costs only a couple of hundred euros, we will watch.

if you lived in some god forgotten country in Africa, i wouldn't have said that. But you are in UK for gods sake..