to run the LEDs, you need basically your laptop + the LEDs + a dmx controller
If you need only 1 LED kit, then the usb-dmx controller is enough (it will handle 1 universe/512 dmx channels = the numbers of dmx channels of 1 kit)
if you need that amount of LED bars (81), you'll then need an Artnet controller. It can handle up to 16 universes (and you can use it at the same time not only for the LED but for other devices as well)
the microModul8 will be helpful for live performances but you don't need it necessarily for now
same thing for the miniMAD : it's a MadMapper companion in which you can export your DMX (LED) fixtures. Very helpful as well but you don't have to get one right now. for both the MIDI controller and the miniMAD it will depend on your project...
I would suggest : a decent laptop (...), MadMapper for the MADLight function (there is a free demo version available as well as rental version if you don't own a license yet), the LEDs and and an Artnet controller (for dozens of bars)
feel free to contact the garageCube team on email@example.com
you can be put in touch with the team's LED specialists