Hello! This year I lost my father and grandfather and inherited the car they bought together in 74. It’s been in the garage since and never touched. I started looking at it this weekend. From what I can gather it’s a early 64 between March and July. 289 D code. Has power steering, power brakes. Red with white interior and white convertible top. 4 speed manual. Has some body damage, rust and is 99% complete with a shed full of parts. I’ve been told it’s rare and worth some money. I’m the kind of guy that changes things on cars/ trucks to make them better. Better brakes, steering, engine mods. Would changing parts to newer tech really take away it’s rare side and lower the value? Is this car better for someone who wants to restor to original?