plc S300 modifications

I am in need of a skilled freelancer to assist with modifications to my plc S300. The project requires both programming and hardware changes, and I am open to suggestions for the best approach to achieve my desired outcome.
i have a missing ethernet switch that properly connect plc with anther, and need to overcome it, I dont know exactly the problem, i need to run the system
Ideal Skills and Experience:
– Proficient in programming languages such as Ladder Logic, Structured Text and Function Block Diagram
– Experience with hardware upgrades for plc systems
– Familiarity with Siemens S300 is preferred ( our type :CPU 317-2DP)&SIMATIC DP, Connection IM 153-1, for ET 200M & others will be provided to awarded person

The timeline for completion is flexible, but timely completion is preferred. I am looking for a reliable and efficient freelancer who can provide quality work. Thank you for considering my project.