Drawing set

I have a current drawing set of 27 drawings for a Mobile unit.

I require 5 of these 27 drawings modifying to create a new Fixed unit not mobile. I have marked up revisions in red pen / red text.

I need 2 further drawings creating from sketches.

I have 2D PDF, 3D STP / STL format and 2D.

I can only work in 2D PDF but engineer needs to produce the 3 types (PDF for myself + 3D and 2D for my engineers to enable a prototype to be built.)

I can only upload 3 of the 8 files for some reason ?

Thank you.

Dave