You can get the Charger for cheaper up front, but the parts are going to cost you. In contrast, the Camaro will cost more to purchase but parts are easier to find and a bit cheaper. 

Not sure how far you plan on taking the project or what you have in mind for a starter car. Realize that to get either of those cars running well and looking good, you're going to be spending A LOT of cash. You're talking about arguably the most popular year for Camaro as far as restorations go, and same for the Charger. 

Both are nice cars, but neither will be a cheap project to build to completion. If it were me, I'd do the Charger. Less popular which I like and I like the design better.

They're both good choices with a V8, but whichever one you choose make sure you inspect it thoroughly for anything that might be wrong, and don't overpay either. And keep in mind if they say it only has 1 problem, that most likely means it has 10 problems.