hehe funny.
No frame swap is going to be easy!
I've not done it, but I expect this swap would be a lot easier than some of the other frame swaps people try. The differences between frame and suspension may not be much. The changes are more likely to be exactly where and how the body mounts, and where some holes and brakets are located.
I don't know details on 60-72 trucks, but looking at 47-54 trucks you have several small changes year to year affecting different aspects of a swap like this. I would expect you'll see some of the same issues, only more so, in a swap like this.
