Setting up local LLM system and charging tokens back to company

With all the recent issues with Claude and issues with codex I'm having it's and clear to me I need to have a large model LLM thats comparable to use for reliable work assistance. I have a company myself but also work with another company that refuses to hire me staff. For two weeks I've been arguing I need on staff and have been given pushback tho they keep expanding an increased workload. They would rather outsource the work load or pay for ai services.