https://hobbyking.com/en_us/hobby-king-60a-esc-4a-sbec.html

https://hobbyking.com/en_us/hobbyking-64mm-alloy-edf-4000kv-850w-4s-outrunner-version.html

https://hobbyking.com/en_us/turnigy-nano-tech-6000mah-2s2p-65-130c-hardcase-lipo-pack.html

I have selected the parts for version 2.0: (Still from Hobbyking, they have good prices and a lot of choice, still figuring out how to contact them and ask if they could sponsor in some way the project).

A more powerful EDF and battery should give a good suction power. The cyclone design will be improved thanks to your hints and tips! Hepa filter on top also, and transparent container for the dust.