Has anyone accomplished the Legendary Legacy achievement?

Im going to have a go at this, ill use what the game allows to speed things up a bit, but no mods or cheats.

I set short life span. Ive made my founder married sims, the baby Amelia arrived and was aged up to adult the same day via cake. They threw a soak party so that a lot of random sims turned up and Amelia chose her partner from one of the guests. He moved in they got married, baby on the way.