Are you 100% sure you want to go down this road?
What do you estimate you will spend to get this project up and running?
We all guilty of that tho hahaMy guesstimate is a whole lot more then it'll ever be worth.
I hope you didn’t pay much for it. My advice is to strip anything that’s good and sell it. Then scrap the car. Yay the money you make from selling parts and buy something a little better.
Just stop. If you're on here asking where to start, then you're in over your head. You really need to be an expert on these cars to take that project on, and I've saved a couple myself, but I'd pass on that one. It's not a Cobra R or Ferrari. Unless you were born in it, and have all of your best childhood memories with it, skip this one, my friend.
Just start with a clean car. You'll save yourself tons of time & money.