Hello Sir,
Because of space restrictions, I cannot answer all of your questions. In short your request is eminently doable, and I have a track record of working in aviation. Your concerns about the cost being expensive need not be the case, I have given you an indication of an hourly rate, and after a full briefing, could give you a complete project rate.
At the moment if pushed; It could be between £900 and £1800.
Your concerns about the quality of your reference images need not be a problem, and you shouldn't need to supply specialist photographs however - any technical drawings and specs, would be vital to scale your product to the aircraft.
As I am new to Freelancer, I don't have a track record with them - however I can give you aviation and other client references. I can also suggest a "modus operandi" for a briefing and project procedure that has proven successful in the past.
I appreciate that you are unfamiliar with commissioning 3D artists. What I can supply, is model that can be viewed from any perspective angle you may need. Once created you can then decide how many views you need and what the final cost is.
We both would need to brief each other on what reference information you can provide, and then I can then inform you of what I can create, it's not that formidable, if we can communicate well, with a healthy dose of, "irreverent British humour," it's always worked in the past for me.
Yours sincerely
Eric North