Keith..........
Do all your inner work first.
I'm assuming their is no glass in the cab????????
Inner work is all the windscreen surrounds, door internals, door jambs and scuff panels etc.
Once all this tricky stuff is done, you can do the rest in long even strokes.
Simply mask off the screen areas and lay on your coats starting from the roof centres and working your way down to the sills.
Remember ......... a bad paint job is only a sanding away from a good one!
