I know im supposed to be learning but.. Is there anyone I can hire to model something for me? I have a step file for a complex shape that needs to be reverse engineered and then modified. I know plasticity would be a great tool for this.

I have a quick question and need some help. I want to start learning plasticity. I have been using Shapr3d but the cost is prohibited. I do a lot of 3d Printing and I need to sometimes modify STL files to suit my needs. How do I import existing STL files into plasticity. The ones I imported say empty and I cannot do anything to them other than resize them. Is there a way to do this. Like maybe import into another program and export to Plasticity? Im really hoping this can be done. I love Nikita tutorials and I want to really dive deep into this program with his tutorials but if I can't import the files and be able to modify them, I might have to stick with current program. I currently have the Indie version. Do I need to upgrade to the studio version?

Im trying to find guidance or a course for modeling based on 3D Scans I've gathered, or even 3D scans that I've turned into Solids. I want to be able to model off of those, for example, I have something shaped like a square but the surface is not straight or level and has variations. How would I go about copying this? For example, In fusion 360, you can make faces attach to an existing surface.