4. Exact procedure dont know, but the CPU block should be like most other heatsinks. Lining up the backplate, mounting holes, block and then screwing them together.
The radiator should be as simple as putting on a case fa, just using screws that will also go into the rad.
You can run it in push/pull for added performance, as there is greater pressure going through the rad.
Yep, everything needed to set it up will come with the unit.
No, should be as simple as plugging both fans into the CPU fan headers (if there is only one CPU fan header, you should be fine to plug one into a Chassis fan header).
You could go into the BIOS to configure their speeds, but its not a requirement.