Hide fields for "listing page layout" for non logged in users

Hello,

I want to hide certain fields for non logged in users based on the authors membership package (Or listing package, either or).

I have 2 types of memberships “Full” and Basic” Full members listings can display 10 fields and basic should only be able to display 2. I want the ability to hide these 8 fields based on the authors level of membership, is there a way to do this?

I know I can assign fields to only one listing package, but when a users “Full” membership expires and they get set as a “Basic” member the 8 fields I want hidden are still visible.

Thanks