RE: 2 questions:
They do make special tools for bends in wire, I have seen z-bend pliers ect....I have only used regular pliers and needle nose for really tight spots.
I have used ATF, Castor and the special afterun oils that come in the really small bottles. My supply of Marvel Air tool oil depleted last year and now I use K&N which is basically the same as Marvel. THe actual oil is less important than getting a sufficent quantity into the engine and making sure that the engine is run out of fuel prior. I add enough....tablespoons to the motor until it is coming out the top at least twice.......Maybe overkill but that is what I have been doing.
Richard