I'd ask your case owner. I see no seals on my gear that says "Do not open or warranty will be voided" I hate when companies do that.
Do you have Ghost ? You could possibly image the old hard drive to the new one. Then ship back all the old equipment.
but again, I would ask your tech.. I'm sure they will be sympathetic to your plight.. and in the future.. backup your system.cfg and user.cfg regularly.. or better yet, cluster that appliance in addition to regular backups.