Does Lorann's make a cream cheese or cheesecake flavor; if so how is it as far as taste in bc? How much is needed? The customer wanted a cc icing that didn't need refrigeration.

Yes, they do:

https://www.lorannoils.com/searchadv.aspx?IsSubmit=true&SearchTerm=cheesecake

LorAnnOils even has a b/c recipe:
(At least it gives you a starting point.)

https://www.lorannoils.com/p-8759-buttercream-frosting.aspx

LorAnnOils boiled frosting recipe:

https://www.lorannoils.com/p-9058-boiled-frosting.aspx

HTH

I actually just made some BC using the cheesecake flavoring and it was yummy! I made the buttercream dream off this site and used 2tsp vanilla and 2drams of the flavoring per batch and it was really good! Tasted the cc icing to me!