Start with the Deluxe and only upgrade if you feel the need for more assistance ...
You can go here TurboTax CD/Download Refund Request Form to request a refund of the duplicate purchase if still within 60 days of purchase.
All the Desktop programs have the same forms. You just get more help and guidance in the higher versions.
If you use the online version (like for next year 2020) you would need Premier to enter a K-1 you might get from the Business return.