I think it would be interesting if we could build our space suits, helmets, and personal weapons out of blocks.
each "base" kit would be like the current helmet, or hand cannon. Right clicking the item would open up it's "customization screen" a 2d grid of available blockspace. This grid is mapped over the player mesh(deforms/attaches to bone) and provides the player with 1/5th to 1/10th the bonus the same blocks would provide a ship.
Armor and helmet spaces would then be able to min/max your astro mode to what is useful to you:
-a personal power system, to support the blocks you add.
-more thrustes to gain a better base movement.
-shields and rechargers so you don't get one-hit by random debris, or another player's upgraded handcannon.
-effect modules(always on assuming you have the power? "activate" once linked to your hotbar?) so you can be resistant or immune to gravity, have natural damage resistance, improved personal shields.
-more storage space (adding storage bins gives you "personal 1", "personal 2", etc in your inventory drop-down)
-personal cloak/jam
The wristcomp could be customized into:
-enhanced personal savager (add speed, multy-beam, etc...)
-switch to a damage beam for a melee weapon?
-switch to a astrotechno so you can repair?
Each personal weapon could be enhanced the same way, a fixed grid of available block space. (say 7*3*5 for tier 1, 9*3*5 tier 2, etc...)
-Cannon/cannon/whatever for a personal macheine pisol
-cannon/beam/whatever or cannon/pulse/whatever for a rifle
-beam/cannon/whatever for a "phaser"
-beam/beam/whatever cannon/pulse/whatever for a long-range "phaser"
-missile/cannon/whatever for a grenade launcher
-etc, same effects as ship systems, but reduced outputs and a very limited blockspace
-can be self-powered, or drain of your suit's excess power (assuming it has)
This system could be expanded to have "tiers" of base equipment, larger blockspace for more expensive "base."
Players would need to gain a new "equipment tab" off of the inventory menu with "equippable" slots: armor, helmet, wristcomp, weapon. Each ot the equipped items could be loaded into the hotbar to activate effects.