If you remove the under the hood stuff you will have extra holes in the firewall that the standard non AC set up will not cover. I think they make an AC delete kit but I am not for certain on that. Pretty much everything else you can leave alone unless you really want to change it completely over. If it were me and my AC didn't work and I had no intentions of having it fixed I would ditch the compressor, hoses and AC brackets. I would leave the condenser as a radiator protector of sorts, I had a large chunk of rock bounce off the back of a truck one time, bounced and took out my grill and hit the condenser and V-ed it to it just touched the radiator... My $.02