Most logical way to build this spec sheet?

Hi. I’m looking for the most logical way to build a system in Webflow that can display the unique specification of a house (as shown in this example spreadsheet). I have a site with a load of houses in a Collection, and I need to have a unique spec for each house, BUT, with the option to further select an option for each one (standard, upgrade, not available).

So for example, house number 1 in the Collection List needs to have a unique list of options taken from a ‘master spec sheet’ as shown, but with the ability to select an option for each one.

I’m thinking of multiple Collections with references between each, but it’s melting my brain trying to think how!

Here is my public share link: [LINK](Webflow - Rouse Homes)
(how to access public share link)