68 Barracuda 440 swap parts needed

No, it's not that difficult, but it's not for the novice, either. Why fabricate instead of buying? There are lots of reasons, including the fact the is considerably less expensive and you get the satisfaction of building something.

And, if you think you can just hand some wrenches and parts to a novice that he will get the car together, then we'll just have to agree to disagree as every novice I have ever been around (including myself 30 years ago) needed somebody who had been around to help out and point out where the pitfalls are. Even my sons, who have done this swap with my supervision, would need to call and ask about what fits with what.