Hi,
What's your issue, the plug or A/C lines, or both? Regarding the more serious of the two, how far off did you break the plug? If it's sheared off in the head, you are probably gonna have to use a plug extracter,or worse,pull the head.
Regarding the A/C lines, the whole assembly is easily available online,or more likely from your local parts warehouse. The come in natural aluminum,so you might want to paint it. Good luck with your repairs.