I'd like to propose a thing: Magnetic belt.Please explain more about the auto-pickup - like is it all the time, or only in Space dimensions? What armour is the player wearing? The Titanium armour is intended to have a slight auto-pickup ability, like a MMMPS magnet on a low setting.
The Magnetic Belt is a wearable item that attracts items that are up to 4 meters from the player. This item can be placed in the Galacticraft tab, under the slots for oxygen tanks. Its crafting recipe could have Titanium or Meteoric Iron, Batteries, or even a new ore Magnetite.
Once you are using the Magnetic belt, the game will check if there are item/drops floating or laying around you, if so, the items will be pulled towards you, quite like the NEI's "Magnet mode" or Modular PowerSuits Addon's Magnet module.
Thus, the space stations and asteroids dimensions could go full zero-gravity and items could float and accumulate, and even drift away and despawn after 5 minutes if the play doesn't collect the items in time. Magnetic Belt could avoid this situation. You never know when you will need one: http://www.space.com/6131-astronaut-laments-lost-spacewalk-tool-bag.html