It's easy to find as long as you have a little ambition to go beyond your local supermarket. Whole Foods stores have organic meats, and so do many small butchers and farmer's markets.
And vegans looking younger than everyone else? I can give you a couple useless anecdotes of my own: Look how many "celebrity" vegans die early because of cancers or heart attack: David Jones, Michael Clarke Duncan, Robin Gibb, the list goes on and on. And as for the vegans who do live to a ripe old age, almost all of them suffer from some level of sarcopenia.