Here are some screen shots of another dealer of ours LS Tractor Packages from Website perspective and CMS editor perspective to help you get a better handle on how to create a good LS Tractor Packages Product group.
Website Perspective: https://www.haneyequipment.com/
https://www.haneyequipment.com/inventory/2018-ls-tractor-xj2025-244hp-package-deal-athens-al-35613-2220462i
CMS Editor Perspective:
To create custom product groups please view the two videos below,
Creating a Product Group (Layouts Version)
Adding a Product Group To the Home Page (Layouts Version)