Choosing is exactly what you're looking for. It will instantly fill your inventory with every weapon, arm, leg, and body part in the game, all at their maximum "Extra Quality" level.
Sets all possible equipment to max level and provides 7,777,777 credits. Pro-Tips for Weapon Performance front mission 3 gameshark codes all weapon extra quality
: If the game freezes, you have conflicting codes. Turn off "Infinite Weight Capacity" until you are inside the workshop menu, then turn it back on. Choosing is exactly what you're looking for