The problem I'm running into is it makes no since to sale the potion for what it costs to make. Then your at a lose in income because the cost of living.
Salable not permanent. I don't think those are interchangable terms salable could be a one time use scoll. Your jumping to a conclusion there. In the crafting section of the Phb it says you make them at a rate of 2.5 gp a day.
Confused
I see where you got the half the value but where did you find it would take 2 days to craft. Every single source I can find says it takes 10 days and 100 gold to craft including the Phb