I think restocking is a good Idea but I would also like to suggest an alternate:
Allow you to 'restore' an item trace into a useable item, removing everything (starforce/pot/flames etc.) and make it untradeable (moot if this is a reboot only solution). If you really wanted to you could even say this doesnt apply to supererior gear. This would allow you not only to get back gollux equips, but other once only items as well (like the GSE badge for example)