I don't believe this is meant to happen...
Kumos Eraser is the retired item.
[edit] August 21th, 2014 Still waiting for a response on this oTL
[edit] Sorry for the pinging but it's been almost two weeks and I know that there's like more important things to fix but I'd love to know what's going on so I can decide if I should just quit the quest and buy other instructions ^-^'

Sorry that it took so long for you to get an answer back on this, but it has been confirmed that retired items are legitimate requests for this quest.
Any reason in particular? I mean, out of curiosity. If not, that's okay and thank you for the reply :)
