Hi,
Hopefully you have a really different experience than me, but I bought a 73 Cuda that needed a lot of restoration work. I put a LOT into it, and drove it every day to work, only to have an uninsured motorist on a revoked license rear end me at high speed on the highway. That was a month ago. Just something to think about. Now I have another Cuda, basically finished, and won't take it on the highway. Best of luck, considering other drivers.
As for do it yourself or buy one already restored, I think you'll probably find both opinions on here. My second one, now, is basically finished, and I'm pretty glad, remembering everything I did to the other one, and although I loved it, I'm not ready for it all again so soon. However, if you get one basically finished, you may always have the gnawing feeling that there's a lot of rust that you can't see, unless you buy one that has pictures of it going through a ground-up restoration.
I'm pretty sure you'll spend less buying one that's basically done, than buying one that needs a full restoration. Big bucks, and there's always more that needs to be done than you think. That's my 2 cents anyway. Let us know what you do, and post pics if you can. Cheers.