1974 Duster 225 Vacuum Help

Hello guys. Need help with the vacuum system on my 74 duster 225. I have attached pics of how It is currently setup. The vacuum lines on firewall have snapped due to age. They go to I believe AC system but don’t know if I can just cap or do I need to fix. Also the one on radiator is broken as well. Any help on which ones o can cap will help!

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