CORAZ

I recently joined this club and have several questions for the forum. I am the original owner of a '73 240Z. The car has 50,000 original miles and has been in my garage for most of its adult life. In 2001, I overhauled the car by: 1. Switching out the original carburetors and replacing with '71 carbs. 2. Removed the ignition points and replaced with an electronic ignition. 3. Replaced the engine and transmission lubricants with synthetic. 4. Installed new Pirelli tires. 5. Professionally repainted with the original color, finishing with a clear coat. My question for the forum is if the car is driven less than 50 miles annually, with only 3000 miles driven since the overhaul in 2001, how often would you change the synthetic lubricants and tires? Thank you.