Wallpaper Calculator Plugin for Shopify product page

I'm looking for an experienced developer who can create a unique plugin that can calculate the required wallpaper quantity in rolls for my Shopify store. The plugin should have the following features:

- Support for cm/inches: This calculator should be able to convert between different units of measurement.
- User-Friendly: The plugin should be easy to use, neat/small for side bar display and should correct users if they input incorrect measurements. (similar example ifnore the prices https://www.inchcalculator.com/widgets/w/wallpaper/)
- Make calculations: Based on two product types and their data (like roll length and sqft per roll) these are simple calculations.
- 4 inputs from the customer to produce answer = Number of wallpaper rolls required

Ideal candidates for this project should have:
- Proven experience in Shopify plugin development
- A strong understanding of measurement conversion
- An eye for detail to ensure the accuracy of the calculations
- The ability to create a user-friendly and intuitive interface
- Strong problem-solving skills to implement the suggestion feature for user input.