Is 4 link mini tubbing and rear coilovers worth the money on a 69 camaro?

[69greyghost]

Is 4 link mini tubbing and rear coilovers worth the money on a 69 camaro? I am curious because it is a big investment and something that might not be needed. I got, some rear qa1's and was curious if these are a worthy alternative. I just have a cruiser thats a pro touring type car. I kinda want to hear from people that have pulled the trigger on this upgrade on a 69 camaro.