How to make a fractional minimum quantity of a product, tied to a variation and a Woocommerce tag/category?

Question

WooCommerce

Such a question, how to make the minimum (with a step) fractional quantity of a product for a variation, and different values ​​of this variation should be for different product tags?
Some specifics:
- There is a plastic and wooden baguette (divided into categories);
- There is a Chinese, Korean, Italian baguette (divided into tags). Moreover, for example, a Chinese baguette can be both plastic and wooden;
- There are variations for each baguette: buying with slats and buying in packs;
- Reiki are sold by running meters, and the price is indicated exactly for 1 running meter. At the same time, the seller does not cut the rail, but sells the rail (2.9 m for a Chinese baguette, 2.85 m for a Korean baguette, etc.). Accordingly, it is necessary to make sure that the number of linear meters is, for example, at least 2.9 m, the step of the next value is +2.9, etc.;
- Packages are sold by the piece.
How to implement all this?
I rummaged through the entire bourgeois Internet, but the best I found is only the WooCommerce Advanced Product Quantities plugin. It allows you to create a rule for tags, categories, minimum and maximum values, a step, specify a fractional amount, but does not allow you to assign all this to variations. Those. the minimum fractional quantity goes out for packages too.
Help ;-)

UPD. That's right, it's also strange for me to complicate things this way, and I tried to explain this to the customer. But she claims that all baguette prices are in linear meters, that they need to be sold by meters per rail, and not by rails.
I found the WooCommerce Advanced Quantity plugin, according to the description it was what I needed. I bought it, but the result is the same: it is possible to specify the minimum quantity only for the product, and not for different variations...