Shopify - Add Sizes underneath Prices

We would like to see the smallest and the largest size cable on a variation product for "length", being shown under the price as the attached sample shows.

It will take the smallest size from those available, whether in stock or out of stock that are in the variation form in the product.

It will then take the biggest in that form also and display like our mock-up, using the theme colours and fonts.

This is how it looks now:
https://www.juicebitz.co.uk/collections/certified-hdmi-cables-1080p-2160p-2k-4k-8k

and the finished modification will look like this (as per attached image).

Thanks in advance.