With another possible 10-month turnaround ahead of you, in your situation I'd call it quits and return it for store credit. That is, assuming you want to do business with that store again.
Nobody has mentioned it before, but you could take it to a professional pen restorer and see if it can be repaired, and the price quote for the work. But, that does open up a whole new world of uncertainty and stress.
Thanks, ErrantSmudge. Yup, I decided just to go for the store credit gift card. I considered asking a third party repairer, but because it is a limited edition and some of the flaws are in the Auroloide, I didn't think it would be feasible both tech-wise and expense-wise.
(I'll definitely be less likely to buy LE or Aurora from now on and plan to use the credit for something standard, with bigger production numbers or higher quality control and more easily returnable/replaceable.)
And now I need to distract myself from the anxiety that something wrong will happen to the gift card once the store sends it...It sounds paranoid but this saga in general has not gone well so far, so...