I created the classic version, not the revival, exactly as in the kit, fully painted.
Nowadays there is a "completed sample" called Best Mechari Revival, so I took it easy.
This was at the end of the 20th century, before the FG came out. I remember the 300 yen Gundam being extremely difficult to build.
Of course, the shoulders couldn't move because there was too much glue.
If you assemble it without modern conveniences like Mr. Cement SP, it would definitely take a week.

Best Mecha Collection Gundam | solphis's Gunpla works