Shared product options, price the option by yard?

Migrating from Magento and I have a special type of product which I am trying to figure out how best to structure in an elegant way with WooCommerce.

An example of this product would be a custom Sofa. The customer should be able to pick the fabric they want, the color of the legs, etc. Obviously this would be a Variable product. But I would like to streamline the management of this for my client.

Products from a single manufacturer will all have the same fabric and leg choices, so it makes sense to set up some kind of Attribute Option Groups. Set it up once and link to the product(s). There seems to be some discussion around this already. But not 100% sold on any of them. https://github.com/woocommerce/woocommerce/issues/1565

Another requirement related to this, which I don’t think either of the extension in that post contain. It should be set up in a way that a Fabric option can be added to the group and it would automatically be added to all products using that group.

(Now here is when it gets a little tricky)

Custom made furniture is usually given a base price, and then you pat an add-on for each option. Fabric specifically is sold by the yardage. So I would want to give each fabric a price per yard, then the actual product would store a value of how many yards it needs. The final add-on price for that option would be a multiplier of those.

Thanks so much for the help.