Nice to see you have found the Skyliner forum. I suggest you join the club. The club is more than cars as it is more about the people who own them. That said with membership you will be able to purchase the restoration guide. In this book it details what is acceptable for "showcase" judging and what would result in a deduction. They are many other benefits such as the monthly Skyliner magazine, membership roster and annual convention. Cars are only original once and keeping them that way is a good investment. Original brake shoes can be relined and fuel pumps rebuilt. I would keep those and other refurbishable parts if you can.