just look on my example , if u would have to pay 500 caps for that repair kit it would cost u 4000 caps to improve just one weapons quality from garbage to perfect , i dont think that it would break economy . what u wanna improve anyway ? weapons from assignements ? lol that crappy guns all for 4k caps , you would have to spend 40k caps if u wanna do so which seems like some huge con ...
so i see no problem in adding such item , the truth is item quality was introduced without much thinking . i would also be ok if u give arthurs knights just perfect weapons lel . but weapon kits are nicer i think because i think in the future when some T3 stuff will be introduced it would be a good option to not throw them into a trashcan after some use since they are very rare ...
and turbo plasma rifle is the worst of all because of that fragile weapon trait , even when u have a perfect one it detorates very fast , 2 -3 core runs and happy repairing with 4 oil > 200 caps 2*200 > 400 , now think what happens with a garbage one ... its more useless item atm than we think , u cant even trade it because of crappy quality ... and if you science it your heart feels not good .