You can use Mortons Tender Quick, just follow the directions, or Instacure #1, but you really should pre mix it into a cure the equivalent to Tender Quick, as the #1 is used in such a small amount / pound of meat.
You don't need Instacure #2 as that is used in long cured products like Salami.
The Instacure can be had by ordering from any butchers supply and it's cheap. Tender Quick can be found on Amazon, and Walmart used to, and still might carry it. Mortons curing salt is for pickles and such, NOT for curing meats!!!
You want the #1 cure ratio right, and more is not better because you don't want Nitrite poisoning, you also don't want Botulism, that's what the nitrite protects from. Weighing out the amounts is more accurate.
I won't give the ratio amounts cause there's too much confusion on the terms, and names of the different products, and too many opinions from people who allegedly know what they're talking about, but you can google a Tender Quick equivalent...... Or just get the Tender Quick and follow directions.