Hello Fons,
you can download the file and then look for a (local) 3D printing service, like
https://www.shapeways.com/ or https://xometry.eu/de/3d-druck/.
Once you uploaded the file at their page you will be able to choose material and you’ll see the price.
Unfortunately it’s not feasible to produce these parts by myself because my printer is simply too small.
Good luck 
Chris
Edit:
Well…better you don’t follow my recommendation above… 
At shapeways, the price for reinforced Nylon would be about 170 € - for the left half! 
At Xometry they offer Nylon PA12, starting around 75 € per half.
Also, I’d like to add here some info regarding 3D printing particularly these parts:
Following Mark’s advice, we are looking for Nylon material.
I think we should use anyway Carbon fibre reinforced Nylon, but note that these materials are very abrasive. There are at least hardened steel or better ruby ( ~ 50 € upwards) nozzles necessary for flawless printing.
The slicer’s settings have to be adjusted, there is maybe a printer housing suitable and more - Nylon may cause frustrating troubles for 3d printing beginners.
Meanwhile I’ve also noticed that the task should be doable with the Anycubic mentioned further above, I was wrong with the size; the parts can be rotated to fit the buildplate.
However, I’m familiar with PLA, PETG and TPU, but not Nylon ¶ so far.
Printing parts of this size in highest quality (which I’d recommend) may take ~ 24 hours or more btw.
You need a skilled and patient hobby 3D printing partner, mate!