I'm 68, been rebuilding engines since I was 19. Life does happen, wife, kids, work, divorce, marriage, crazy fulfilling work, retirement. Always had an early Barracuda with a 273 and a 4 speed. Not an everyday driver, but it was for about 20 years. Got into high end steel bicycles, cowboy action, vintage high end audio, Glad I kept the Barracuda and parts. Not into car shows. Not into numbers matching. When I want something to do, I have 3 Barracudas in the basement to keep up. I love working on cars, I hate having to work on cars. I would keep your favorite, even if it sits for 10 years or more. I'll bet you will be glad you did.