Emily is 40 CUC per day. I don’t know if it is worth while for her to skip classes at U Havana for a half day. One should ask her. BTW, there are cheaper guides but they make it up on commissions from taking you to the places that are easiest for them or pay them not where is best for you as Emily will. I know, I had a personal relationship for several years with a Havana tour guide.
She does have contacts with a number of the drivers for tourists around Havana and can help negotiate a good rate. Again, remember the guides secret commission trick so her personal integrity comes into play.
I think her expertise outside metro Havana is limited.
BTW, if you need a model to suddenly fill in a photo, she is strikingly good looking.