My first-draft rig only took half a Saturday to put together. It’s not nearly as nice as FlatBaller’s head-mounted setup, but it definitely keeps the Nomad at negative pressure with psi to spare. And if you have a usable vac already, then the rest of the parts only total in the $100-200 range, depending on where you buy.
I’ll probably want to upgrade this setup in time, but as a quick way to make my Nomad safe to use in a corner of the living room, it definitely works. Just leave the vac running for 2-5min after cutting is complete to ensure any floaters are sucked away, and you’re good.