cases ae pretty dumb if you have the tools. and apple seems to take particular care in fitting correctly. The Display is fine? then haul out the guts, bend as needed and return guts to case. If an illiterate malasian can do this on a regular basis you should be able to figue it out. Find a local apple store and ask the locals if thy have done this task, enquiring about dificulty.
thanx,
bill