Import Container Costing in Excel

I need a more user friendly excel tool to allow me to develop my landed cost for importing containers of wood components. Process is simple, but has some variables that I would like it to consider as i enter items in. Process is as follows: 1. Agent sends me an excel with costings delivered to port. His sheet breaks down the LxWxH of each piece, skid/unit, and then total skids in unit. Costed out to a per piece. 2. My sheet needs to be able to take that data (or i manually enter) and give me a landed cost into US. I will need my sheet to have the ability to enter in freight rates, duties, tariffs, and customs clearance fees. Even though I have a per piece cost in the sheet he provides, I want my sheet to be able to calculate that same number 3. Once the sheet calculates my landed cost, i would like it to give me a delivered m/3 4. Sheet also needs to allow me to change number of units of a certain size of product, but be able to keep from going overweight Possibly this could be even a form that allows me to enter in what the sourcing agent provides Would like to see if this could be developed into a power app or something as well.