50gp and 2 hours per spell level to copy scrolls
3rd Level Spell Scrolls
-stinking cloud (150 gold and 6 hours)
-fly (150 gold and 6 hours)
-dispel magic (150 gold and 6 hours)
2nd Level Spell Scrolls
-melf's acid arrow (100 gold and 4 hours)
So total is 550 gold and 4 days (2 days if Lorrain does nothing else)
And Lorrain can also write scrolls for anyone if he has the spell in his spellbook.
Excerpt from Xanathar's Guide
Spell Level | Time | Cost |
---|
Cantrip | 1 day | 15 gp |
1st | 1 day | 25 gp |
2nd | 3 days | 250 gp |