Louvre windows: how to? and who to?

Hi there,

Pic attached of desired style of outcome (although I do want the doors to sit flat against the wall when open...

Q1. What sort of trades person do i get to install these in my place?

Q2. Can this be done easily for a double sized window (twice the size of the ones in the picture) ... does this just mean you bifold two sections on each side?

Q3. Can this be done on a corner window? What is the solution so it doesnt block the window? is it a bi fold to the left and a quad fold to the right? Or would the quad fold be too cumberson? (see attached 2&3 pix of window)

Thanks in advance!