Interoperability of the CAD solution with other software is also a consideration to ensure simulation for virtual prototyping and Testing. Simulations will help catch bugs and issues early on and iterations of the design will help reduce the time and cost during the physical testing phase.
Thus, ensuring that your CAD drafter is involved in your project from the start and understands your requirements, you can show your proposal and understand their approach to find a like-minded drafter. Cost is a consideration in the overall scheme of things but the competition and complexity of your design will determine the right services. A knowledgeable drafter will know engineering methods, product data management, understand architectural techniques along with the mixing of tools, drawing of machines, tooling piping, and structural differences.