I've put in a lot of work for this very topic. The best thing you can do is follow up and let manufacturers know that there is a market for this particular modification.
Here's what I have so far:
Here is a thread that I started to drum up interest, and get some reference photos for local 3D printers to work with. The caveat at this point is that they require a physical wing to design the top joint of the stands, which I don't yet have.
https://www.camaro6.com/forums/showthread.php?t=506560
Here is a thread where I've compiled all of the trusted vendors who are currently manufacturing or selling ZL1/1LE Wings, along with a bit of information for each option:
https://www.camaro6.com/forums/showthread.php?t=525534
C7 Carbon seems to be the most open-minded and transparent manufacturer for making the parts that we enthusiasts want. They don't have a low-rise wing just yet, but I did just ask them if they are willing to fabricate one for us.
Here's the thread with me asking about the process, post #37:
https://www.camaro5.com/forums/showt...1#post10172645
6LE Designs promised me that they have already fabricated low-rise stancions and planned on delivering their first version to me (which I paid for 6 months ago), BUT the delivery dates that they specified have come and gone three times over. I'm not holding my breath on this one.
And here's some pictures of the low-rise spoiler in question, at least according to GM's taste:
Attachment 933807