I just played a game where I had three slaves wanting a stimulant potion by day 10, just to get them to level 2 or 3. To put this in perspective, I actually managed to get whole story quest finished by day 14 but I hadn't seen any of the alchemy fluid component by day 10.

Maybe the levelling requirements could be split into two groups, one for level 2-3 and one for levels 4+, putting things like the stimulant potion and the grade raise into the 4+ category.

Fluid and demon essence you can get from the alchemist in gorn

I completed the whole story quest by day 14 here but I hadn't unlocked the alchemist in gorn by day 10! Day ten is quite early for killing oozes for reagents as well, even though in this case I had tried that.