Nice pad Chris...
Shame about the stupid gutters though as looks like if possible the cowling would need removing first to clear all the guttering & downspouts properly. That’s another classic example of architects not having a clue or even thinking about how to go about maintenance on a building afterwards.
I take it the studio was named after all the pine trees around it . 
I'm also guessing that house is called pinewood house/lodge 
The house was only built 18 months ago, the owner got on the phone today to the builder and asked if he could contact the gutter manufacturer to get there recommendation on best way to clear them.
The builder's response was 'dont need to, the gutters are easy to clean out, we did them not long after the place was built, just get your hands in there'.
Just shows he's talking poop like most builders, you can get your hand in, but once you grab some muck you can't get it back it!
Plus iv cleaned the windows there from day 1 and watched the gutters filling over time so I know they havnt been touched.
Think you may be right on removing the cowling smurf, each 6ft section is scrwed on with 4 normal Philips screws. Might be a case of undoing these, removing the front face, cleaning then reattaching.
Would be extremely difficult with a vac.
Thought I'd offer it to smudger as he seems to do alot of difficult, hard to access jobs and has the equipment and manpower.