Things I also had to consider included; placement, how well blended in it would be, airflow around the generator, weatherproofing and exhaust gases.
This unit is designed to be wired into the fuse box of the house, I hired an electrician to do this part and put the input power outlet near where I was putting the box. Its on the beam in the corner behind the box, you may see it in some pics.
The end result is as per the attached picture.
Stuff you will need:
Cement, sand, aggregate and water
wheelbarrow or cement mixer
concrete smoothing device such as trowel and piece of wood
something to hold the form-work, stakes, pegs etc
blocks to make walls
wood of some sort to make door and roof
ventilation type fans
earthing rod (available from electrical supplies shops)
some cable to wire to the earth
Dust mask - cement powder can be a little nasty
Gloves - again with the cement powder, I didnt use them, but I had a hose and washed off anything that got on me
Water - needed for the concrete mix, but also good to replace fluids as you work
Tarp - shade, rain protection etc