Welcome to the forum! I’m in a bit of te same boat with my 1977 280z which I’m trying to get back on the road. I would love to see every little step of your journey with the car. In my opinion all possible information is welcome online as some information is pretty hard to find.
O and as you have seen the Initial D anime you might also enjoy Wangan Midnight, might even give you some inspiration for modifying your Z. 😉