For ACs I believe you can use the same LC, as far as I know you just can't use the same LC for both CU facing and CORE facing, so if are using ES+ only cards, you would need 4 of them.
With 4 I mean 2 in each Core router, no difference which one you're using in CE.
Getting Started
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: