I can provide several helpful suggestions, but I may miss a few:

1) Painters tape on all edges.
2) Carefully note the fender shim stacks at all bolt locations and bag each stack separately with labels as to location.
3) Remove the inner and outer fenders as a unit.
4) A buddy would probably help but defer all adult beverage intake until after work is completed.
5) Do NOT take the opportunity to mess with the door locations while the fenders are off.