3D printer files for rear air scoops

[chook12]

Hi all.
I'm keen to try out rear air vent scoops (ears) on our van and am searching for .stl files so I can print some out. Don't know much about the tech involved but I've enrolled in an intro course at the Makerspace this weekend aiming to leave with a gauge pod for a tacho. Have search thingiverse and other repositories of files and there is a fair bit of T25 stuff available but I can't find ears. I guess I looking for a benevolent person who is willing to sacrifice some time and energy to provide the Club with opportunity to make their vans even cooler. It was so hot here last summer that we couldn't go faster than about 80kpm on the open road when we set off for a trip. It was over 40C that day. We felt quite vulnerable with the trucks wizzing past. If anyone can help it could be that many of us will thank you.   
Anyway, just an idea.
Thanks.

[Aidan]

is your radiator the thicker one and are your deflectors intact and the fan working ?

or are you air cooled ? in which case is the tin ware all present and sorted

[chook12]

Last of the air-cooled, 2l EFI. Tin ware is all good, choke works and redirects once warmed up. Grommets etc almost 100% good. 
Engine temp is normally quite good and rarely do we have to modify driving due to heat. It was ridiculously hot when we took that holiday. Roads were fry-an-egg hot, preheated by the previous weeks weather. The drive took us inland where ambient temp was mid forties plus. We were kicked out of the park early as the next day was declared a 'catastrophic fire danger' and the park would be closed. Not sure if ears would have helped but I'm curious, not AU$200+ curious but if I could print a pair maybe.

[chook12]

Printed a gauge pod on a Bambu setup with a P1S printer using ABS filament at the Makerspace (Markerspace.org) in the city this morning. Apart from the decision to strengthen the walls and then having to sand out the inside to fit the gauge (52mm tacho) in, it was a great learning experience.
The problem with the ears idea is that they're too big for the build bed on all the Bambu printers. They would have to designed to be done in halves and have provisions to chemical weld (acetone) a strong join. I imagine the forces they are subjected to at 100 kph are substantial. Maybe the leading edge would need further reinforcing.
We were told the print gets a bit dodgy as you get near the edges of the bed so maybe a printer with a 300mm bed or biggeris better.

[tobydog]

If the parts were printed in two pieces, it might be worth considering a tenon/dovetail location feature where the parts mate together.

[TwinTurbo]

I don't regret buing my K2 Plus over the smaller model, yes it was a few quid and takes up space, but a 350x350x350 volume is worth having, even then I have had some prints i have to join. If I do have to join I try and do a mortice and tennon