Curious as to what quantities/cost you are talking about. . .
Some good news: we may have a parts PE now. Bad news, it is a PE we bought off the last woot sale and gave to our daughter for Christmas. She was writing on the eInk side at school when the device locked up. Reset button did nothing. Power light comes on and off with the power button, but nothing else happens. Detaching the battery and reconnecting changed nothing. Device will not boot off of USB either. She has only used the device since about New Years' - as we wouldn't let her use it until we had screen protectors and a skin applied.
What really sucks is that both of these devices would have been covered under warranty had the company remained in business.
We absolutely LOVE the PE, and have 5 (well, now 3) within our family. I am hesitant to buy any more off eBay or elsewhere because a 40% failure rate is pretty bad IMHO. We had updated both to Ermine - so maybe that was the cause. Thinking about not updating the 1 remaining one that hasn't been updated.
Off to search the forums for some things to try with the recent dead one. . .