Unless you get lots of sunshine, you might add vitamin D, but don't overdue it. Alpha lipoic acid is not bad as antioxydents go. They're both cheap. Omega 3 oils from cold water fish wouldn't hurt, but you say you have a good diet, so I would say to pass on the calories and expense.
Oops! You want to gain weight and money is no object. Definately add the fish oil.
Unless you are trying to treat a specific condition, or have lots of money, that's probably as far as you should go.