I'll chime in here. We also have about 140 sqm to pave and are still undecided whether to do it ourselves with the help of an acquaintance who is a paver, or to leave it to the professionals right away and offer to assist as laborers.
Preparatory work: granite stones still need to be set to border a planting strip, we want to place a paver-compatible cover for the inspection shaft, and we also need to agree on the paving.
It was actually supposed to be Centara by Kann, but we've now heard from various sources about splitting stones. What would speak against stones in the size 30x60cm?