I have done several of these. Not easy . If you are dead keen on doing it yourself, Then I will write a tome. Rear panel, Fan, Wiring, heater,heater duct,bearing, frame screws.../ blah. If condenser, front fan cover too. dont break front fan. Easily broken at joint to motor shaft.
As Haynes say, assembly is the reversal of dismantling!.
Now get yourself a nice London Pride!
Ric, January 2005