Varients in Ecommerce for 1 item

Is it possible to create variants for only one item available? All of my products are one of a kind but have two options for purchase. Once purchased they should be “unavailable” on the site without me having to go and edit each item every time. Would this be at all possible without me having 1 of each item available making it possible for the item to be purchased twice by mistake?

Here is my site Read-Only: [LINK][1]
([how to share your site Read-Only link][2])

[1]: http:// Webflow - Saddles De France
[2]: Share a read-only link | Webflow University