Should I rent a scaffolding when repainting the exterior?

Going to repaint my house. Exterior is CBS, the perimter is about 50'
x 50', of course it is not a perfect square box, some parts of it like
the front and back door have extra exterior lengths as it makes inside
and outside turns. But I think it's a pretty good approximation of the
length to cover. Height-wise it is about 16' tall at it's highest
point and some areas are lower. So a conservative estimate is that I
have (50 + 50 + 50 + 50) * 16 = 3200 SF to cover.

I did an inspection last weekend and for the most part there is no
chipping and peeling of existing paint. Do I still need to power wash
it before I prime?

The metal gutter has peeling paint, and the piece of wood attached to
the eave where the gutter is attached to also has peeling paint. Now I
need to take those paint off, and I think it's probably dangerous to
power wash those on a ladder. So I need to rent a scaffolding? Do
they rent out scafolding for painting jobs like this? If so, is it
common to rent them for an extended period of time like a month? I can
only work on it on weekends and probably using a scafolding I can paint
better and will be able to patch spots higher up that I normally cannot
reach. How high does a typical rental scaffolding reach? Can it reach
12' high so I can reach the tip of the 16' roof when I stand on it?
Are there hydraulic ones that I can touch a button and it adjust it's
height? or do I have to take things apart and re-assemble if height
adjustment is necessary?

Once rented, is it typical to leave it outside exposed to theft or is
it a take down and keep out of sight until need to use again thing?

About the gutter - I assume it needs to be totally taken down,
repainted and re-attached. I don't know how else I can properly
repaint the board it is currently attached to. I will take a close
look to see if there is any rot too.

MC

Thanks,

MC

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