Inventory Management multiple attributes and variables

I have two sites that I have multiple attributes and variables, but need inventory management specifically on one of the attributes

Product Family ABC
Attribute 1 – 22ounce, 1 gallon, 5 gallon, 55 gallon
Attribute 2 – Ready-to-Use (RTU), Concentrate (ISC)

Variables
22 ounce | RTU, ISC

The net effect in woocommerce is there are two select pull downs on product shop; so for instance I can select 22 ounce RTU and ideally:
(A) I show remaining stock to customer
(B) Somehow in the product variable section I can
manage inventory such as 22 ounce, RTU = 5, ISC = 10

Currently I can only set inventory for 22 ounce, 1 gallon, 5 gallon, 55 gallon and don’t know how to have further refinement to 22-ou RTU, 22-ou ISC; 1 gallon RTU, 1 Gallon ISC; 5 gallon RTU, 5 gallon ISC; 55 gallon RTU, 55 gallon ISC

The reason I am overloading to have multiple pull down selections in the product shop is I was requested to have fewer products showing .. we started spraying out 22-rtu on its own as a product, and 22-ounce ISC as a product and so on.

Currently we split to have product family RTU and product family ISC which allows adequate inventory management (show customer what is left, on order deduct inventory available) ..

But with many more products we would like to shorten the product family and allow to choose Ready to Use or Concentrate on one order setup page.. one one of the sites the combination of products to variables are 28 products, each product has a single, 5 pack and box; but each element (single, 5 pack or box) has different colors RED, WHITE, BLUE

So rather than make separate product single red, single white, single blue we used multiple attributes (2) and see inventory management can be focused on the variable but it is for SINGLE and the inventory is actually SINGLE RED 10 available, SINGLE BLUE 80 available, and SINGLE WHITE 40 available … but for now I can only do SINGLE 130 total available but that is a group and not individual

Any suggestions ??