I went ahead and sent 1977 my za50 cases. Here's the follow up.
12/29/14: cases delivered to '77 per USPS
01/06/15: '77 acknowledged receipt
02/16/15: '77 advised that more touch up work required
2/19/15: '77 promise to ship order on 2/20
Nobody has replied to my emails since 2/19. So a three week turnaround has become an eight week one.