3D File Modifications Expert Needed

I need a professional with 3D editing skills to help modify an existing 3D file. The project entails:

- Modifying existing geometry: Resize certain objects and change the shapes of some within the 3D file
- Adding new elements: Incorporating structural features into the file

The ideal freelancer for this project should have a strong background in 3D modelling and design software. Experience with adding structural features to 3D files is a plus. Please be prepared to demonstrate your previous work in 3D file editing.

Looking to adapt one file for dimensions and the other for a box.
This box I would like to have fitted.
https://www.printables.com/model/789894-parametric-rugged-vial-box

Using the dimensions of this vial
https://www.printables.com/model/161076-travel-insulin-case/files

I would like to make one to hold 5 and one to hold 10 and one to hold 20

See pink example as refernce