"So that would be a great thing if someone could do that job for less money. THX in advance"
Duh, sure would be great if someone would do all that very complicated work for a very low price.
Obviously you have no idea at all how much work is involved in making that 3D drawing. Not to speak of printing it in 3D.
I'm in agreement with you that it would be great if someone would do that for a reasonable price. Now you know why aftermarket items cost so much. The maker needs to get paid for all the time he put into the making the model parts.
Back in ye good olden days when a modeler needed a certain part he would scratch build it himself out of wood. That was when modelers were making models, rather than just buying parts others made and gluing them together.
On the other hand, if I wanted a certain part or even a complete model all I have to do is SCAN an accurate plastic model that exists in a smaller scale, Enlarge the part up to the scale one wants and then feed that electronic file into a 3D printer and produce the part.
Simple but do you have any idea how much it costs? There is the cost of the computer (it is not a cheap unit I assure you), plus the software for scanning, plus the software for printing, plus the printer plus the incredible amount of time necessary to learn how to use these software programs All this for what? A model of a seat? Spend many thousands of dollars and months of time just to make a place to park a 1/32 scale pilot's butt?
Yes you can hire a place to do the illegal scanning and the printing but try to find one that will run the risk of making an illegal copy of a model and then reproduce it so they can sell you the copied part for a few dollars? Yes that may work if you are dealing with mainland China but they will expect to get lots of money from you for the service.
That is why I prefer to whine. Indeed I have become an excellent whiner.
Or I can scratch build the part myself. Gee, what a novel idea.