Apply ACL access to Variants

We are trying to implement an easy way for customers to to access upgrade SKUs.

Right now, some products have three upgrade options, each with a different price:

New
Upgrade from the Previous Version
Step Upgrade from a Lower Version
Upgrade from an OEM Version

Assuming the use of ACL to put the customer into a group, and the were added to a 'previous version group' before, then the "Upgrade from the Previous Version" Variant would be visible to them. They would not be barred from buying a New version if they want.

Is this possible? If not, what is the recommended method? Id rather not have to create separate products for each type of upgrade, if possible.

Hi,

Each variant of a product has its own "access level" setting. So that in the characteristic dropdown, you can have only the variants available to the user groups of your user account.
Just edit each variant in the "variants" tab of your product in order to configure that.