A do it yourself metal roof project is far from easy. Aside from requiring much hard to obtain and hard to use equipment, the process itself is both complicated and dangerous. There are also many situations in which more than one person is required. For these reasons, we recommend that you do not proceed with a metal roof DIY project if you are incapable. Alternatively, contact a Roof 101 professional for assistance.
As you're probably already aware, the roof on your house or building is more than just a layer of sheathing - it's a complex structure that is made of many integrated parts, such as insulation and guttering, which together make up one operative unit that protects your home against weathering.