So far i kept the full ac line , charcoal canister

Anything else i need to keep ? Front light harness is being switch over to zenki gts.

I would swap everything out, that's what I did. Surprisingly I had fun doing it. Also make sure you fix or clean up the areas while you're doing it. If you have all the parts, then swap all the parts. In my opinion, if you take short cuts you might end up with a "No Start" or some of your electrical comments might not work.