Hello, I've read your request and i can convert your files from stp to dwg. I have huge experience in Solidworks (3D modeling) and AutoCAD, you can check some of my models in my portfolio. If you are interested in my proposal - please contact me.
I am en English civil engineer, with a degree in Engineering from one of the top Universities in the world! I do a lot of worker with 3D and 2D modelling so I would be able to have all of these files converted and sent back to you within 24 hours. If you need them sooner please message me and we can discuss deadlines. I hope to hear from you soon.
I am a student myself and I have experience of working on solid works as well as auto cad and can devote time to this project. Certified in both courses, I am a very hard working person and believe in completing any job in the committed time.