I think that Draft can give you very good results.
After attending the training you need to spend some time on Draft administration.
My question are:
If you only have PDMS how can you insert this DXF on Draft?
Can this DXF be inserted as a overlay and adjusted on 3D model?
How I import DXF to PDMS?
I will be facing the same situation soon, Is there any recommendation how to do it?
Autodraft could be the answer. Or plot.exe. It depends.