Developer relations had a small cache of replacement units for this reason, they expect a certain defect/damage rate, and a handful of people from the device program here have already needed to take advantage of this.
As for replacement parts, I wouldn't see why they'd bother to keep them in stock or train staff on repair procedures, given the run of actual units was so small. You might be out of luck given the nature of this device if you don't have a channel to get it replaced.
I can give you the email of the dev relation people via PM if you want, but I imagine they're going to ask some in-depth questions about where exactly you got the phone from and what you're using it for before they help you out.