I bought this kit recently in the Airfix guise, so will be following closely. Re canopies, I purchased Airfix BV 191 recently in Modelzone sale as a quick build and masking the canopy parts is going to take like forever.
Maybe using tape and doing a few lines at a time might be the way to tackle this. I hate lots of frames on the glazing, doing it free hand make s me go cross eyed and I need to take breaks.
If it's a temperate European maritime scheme then dark grey and an ocean grey is right, with a lighter grey or sky underside. Usually a sky coloured fuselage band was applied. But that all depends on the theatre in which your model is based, and the stage of the war. Judging from your instruction sheet there this is the Revell kit?