Lard, is that healthy? Or full of good fats in this form?
Yes, lard (animal fat) is necessary for life on an all meat diet, and is extremely healthy. It is the foundation of our evolved capability to have smaller stomachs and larger brains. Fat is why humans became big game hunters - small animals don't have a high enough fat to protein ratio.
Of course, eating too much lard will make you miserable. Eat to taste.
Yeah, that fish on ice is your best bet, it should be fresher than any other meat you can buy in your supermarket. Go for it!
Again I recommend you go all meat and zero fruit at first, to make sure that fructose or something else in fruit isn't causing problems.
Don't buy that "wheat free, dairy free" @#$. It's still processed food. You should eliminate all processed food and chemicals from your diet with extreme prejudice. If you doubt, watch Food Inc.