The 4010 series console requires a DOS software package for firmware 1.60 and lower. Each firmware upgrade had its own software package, however 1.6 will work with all previous versions. Firmware over 1.62 is windows based and there is several versions of that as well. I do not recall what the latest version is. You can upgrade the firmware by swapping the firmware chip on the base board, however that is usually $400 per chip.
The cables are really easy to make in house, but you can buy them direct from Zetron for about $150 if memory serves me.
The schematics and related documentation is freely available online. They are straight forward consoles, but you need to know what you have to have a good base knowledge of pinouts, connectors, cabling, audio levels and tuning.