So I go 'scure (obscure source), and handwavium a circuit from
Explorers, that covers containment/shielding and propulsion for my ... motorcycle? Or maybe I cobble together a Rogue Trader-era land speeder (open frame)
. I don't have the shop space for much bigger. Whichever, it gets 'waved for durability (and performance). Smaller is faster, but there's a speed limit.
Then I handwavium-paint my costume (Iron Man or Corvus Space Marine? decisions, decisions!) for some personal durability. Does it include life support, comms, sensors (and flight)?
Whip-up a STO-flavor "personal shield generator" belt/pin (a backup
Explorers circuit?). It seems to be a little dangerous out there.
A belt full of tools with bottomless batteries, and an Industrial Automation astromech droid
to cobble together the things I can't.
For those of you thinking "but you don't want to sit in your speeder for the four whole days it'll take to hit the asteroid belt (and then camp while you are out there)", the
Explorers field could be resized, and went as fast as power allowed, had zero inertia inside, and seemed to be a handy excavation tool (neat holes through things). Beowulf Schaffer flew a blown General Products Hull ship back from that anti-matter planetoid (Niven-verse), I can camp in a giant sphere forcefield until I have a door on my asteroid.
And a cardboard box with "transmogrifier" written on the side in magic marker.