I'm getting a 1940 buick 4 door soon. Full restore was done 20 years ago, driven for 6 months then parked in a barn untouched till now. No body work needed but need to do service on all moving parts. Where to start???? Tires are rotted and maybe some of the rubber hoses and belts. Probably need to remove and clean fuel tank and lines as well as brake system. Clean and service oil pump, fuel pump, carb, cooling system, etc. I'd like to avoid disassembing the engine except for needed replacement gaskets. Your Thoughts???