First of all, you need a dog in the trunk, then two lane limiters, two half paving stones and a folding rule. A temporary frame helps one find the right location for the foundation holes of the posts, as well as align the post footings to each other. Thus: Paving stones with the help of an old screwdriver levered and taken out, grabbed the spade and dug. With small wooden boards, the post footings can already be positioned aud the right height above the pavement. 
After the post bases were set in concrete, it was a matter of waiting. Instant concrete should really only be used when you have persuaded your father-in-law to help and want to annoy him.
Since we became happy owners of a carport assembly kit, the remaining was something like playing Lego. What was really important, was to keep the parallel displacement as small as possible when joining the posts and laths, since the aluminum sheet sections for the roof are of course right-angled and had to be laid overlapping.
In summary, it was a good decision to have bought a carport kit. It took us 4 hours each of two days to prepare and build it. Of course, we had to buy and install a rain gutter with downspout later. It also makes sense to paint the beams with carbonite after a year, even if they were pressure impregnated.
