You can't get any cheaper than with wood and corrugated metal. You have to like it. But you can't complain about the size.
That may be.
We could have also afforded a double garage of that size, we have enough money.
But why?
The rental apartment at the time also included a carport (from the same carpenter) with simpler execution (no sandwich metal, no equipment room, no two-tone powder-coated metal (currently it is like the profiles RAL 9007 and white inside), no finish at the roof or Z-profiles at the bottom, etc.
We were extremely satisfied (after all, 7 years) with the carport at the time. No wear, no maintenance, no repainting or varnishing, nothing. Simply maintenance-free.