It looks like you are in the best version- Self-Employed online. You only need Premier to enter a K1, but you will likely need the benefits of Self-Employed due to the sole proprietorship/ Schedule C. SE Online contains all the features of "lower" versions.

Enter the K1 here-

• Federal Taxes
• Wages and income
• Other Business Situations
• K-1

Do not report the LLC activity under the Business tab or Income and Expenses. Those are for the sole proprietorship only, as the 1065 business already filed its own tax return.