repair garage old gutters

[Honest52]

How to replace old gutter for garage? 

Our old garage gutter is metal , and rusty, with broken down pipe. It's about 10m long. 

I plan to take it down and install new metal gutters and pvc down pipe. 

To prepare materials: colour bond 115mm x3m gutter x 4 nos

Colour bond external brackets x5 nos

Colour bond lh stop end and rh stop end

H

Abey 80mm round downpipe pops

Icon 80x3m round down pipe 

Icon 80 95dg socket bend downpipe  x2no

Icon 80mm round downpipe clip x2

Could you please check and advise anything missing or tips?

Thanks