Suggestions: Upgrade Gear/Weapons/Mods using Materials

TL;DR - Ability to use Materials/Currency to upgrade any item in game to a better version(green->blue->purple->gold) at a much higher cost than crafting/recalibration costs. Attributes/Mod Slots remain the same, just the +XX.XX/+x% is buffed.

I want to be able to upgrade green items(gear/weapons/mods) into blue items. Upgrade Blue items into Purple items, and upgrade Purple items into Gold items. This would be done at either the recalibration station or the crafting station, and for a cost of 2x the materials used to craft the item(if done at Crafting Station.) or 2x the cost of recalibration(if done at the Recal Station).

The exact attributes and stats would remain, except be buffed. Like if I have 10% Crit Chance, the new upgraded item would have 15% Crit Chance. Wouldn't be a whole new set of attributes.

If it has no mod slots, then new item wouldnt either. If it has 1 mod slot, new item would have 1 mod slot. Etc.

The reason I want this is that then I would have something more to spend currency or materials on to upgrade various items I find, instead of just breaking them down or selling them.

My second reason for wanting this is that I have a huge amount of green and blue blueprints that I will never use. With this upgrade ability, I could build items and upgrade them.

Another example: I find a Vest at a vendor that has exactly all the attributes I want in a Vest. However, it's a green item. At higher levels, that green item is worthless to me. With this ability, I would buy the item, then spend a lot of materials/currency to upgrade it all the way to Purple or Gold(if I can afford it) while keeping the attributes/talents in tact.