Good update Boney, nice to see Enchanting portrayed with some internal consistency behind it.
Couple of questions- I assume you take the most popular length of time, and go down the subjects by popularity until the time is filled?
Correct.
Can you give us a rough idea what post-graduate classes (coming back after graduating) cost?
I'll work out a 'College favour' system that can be spent on lessons or other things, but about 50-100 gc per works a ballpark.
@BoneyM ok, our first enchanted robes seem to be pretty valuable. Can you give us something to clarify its real value? Would help in our future enchantments.
The sale of magical items is severely restricted by the Colleges, for fairly obvious reasons. To monetize enchantment, you'd need to either have a commission come through them, or come directly to you and be approved by the College - so from nobility or citizens that have served the Empire in one way or another. The sort of person who is important enough to be approved by the College and wealthy enough to afford a magical item is unlikely to want to dress as a wizard, so the 'real value' (which is an odd way to mean 'monetary value', I have to say) of the robes you've made is effectively zero.
If you want to start bringing in an income from enchantment, the simplest way would be to gift a few pieces to important figures you know and wait and hope it starts a trend.