Painting Exterior's Hard To Reach Areas? Pole with shield?

[WillyShatsWig]

I've managed to paint the majority of the front of my house. However there is a section above the front door that is very hard to get to by ladder as there is a porch in front of it that doesn't look as if it would hold my weight. Also I can't quite reach the very top of the house where it meets the roof's overhang, by a bout 1 foot.

I would like to get my hands on an extended pole with a roller on the end of it. However, I would like a thin (rubber/plastic?) paint shield at the top of the pole, just above the roller so that I can push it right up to the overhang at the top of the house without worrying that I will get paint on it.
Surely such a thing exists? I can't seem to find anything in Homebase, B&Q or Wickes... and Google brings back nothing of any use.

Failing that what about a paint pad on the end of an extendable pole, as the flat edges would prevent it from marking the over hang if done carefully enough?
I can't seem to find paint pads that would be suitable for masonry paint.

 

[foxhole]

Sheet of ply on the porch then it will hold your weight, reason you can't find pole solution is because you cannot exercise precise control over a distance.

 

[WillyShatsWig]

I don't think ply would make any difference as it is more a shelter over the front step than a 'porch'. There are no supporting beams or walls, just where it is attached to the wall.