Instead of having armour the way they are now, what if you could find or dismantle current existing armour and get the parts from it (not sapphire wire, plates, and the other thing) so you can customise how your armour looks like and be a completely different guardian. Say you like how the young ahamkara hunter gloves look, you can take it apart and combine the forearm spine with the shoulder spike from crota arms. Or maybe the front part of the crota helmet with a dead orbit one.
I didn't forget about the titans and Warlocks, just don't know names of your armour sorry.