3D modeling - Fusion 360 only - engine parts (curves/blends/shells)

Specific to Fusion 360 expert users only - I would like to see demonstrated skills with complex curves and shapes, done in a clean way that can be modified during subsequent prototype testing. Models will be used for CNC machining of prototypes. Should also have proficiency in working with 3D stl data I can provide to show specific details that need to be modeled in Fusion. USA "can" be an advantage here - as past projects have required sending parts to freelancers. To protect IP I have simplified an existing model and attached an STP for your review. Cover 3 RFQ v1 - this is a very simplified version of a real model. This would need a lot of refining but can show you the scale of the part. Some of the picture images will show more appropriate expectations for finished versions. Thank you for looking into this project. These projects always seem difficult to outsource due to the custom nature of our product line, and continual refinements based on CNC machining cost (leading to product cost), aesthetics, specific customer constraints (one very high end professional race team looking to save any gram possible). If you have valuable experience in this area please don't be afraid to reach out and tell me why I should hire you! Again, I am ONLY looking for native Fusion 360 models, and with the entire history line as intact as possible (assuming the need for some sculpting work). Basically I need good affordable and efficient help and can not continue on my own, or hire a full time CAD expert. Should be the perfect fit for Freelancer right?