I don't see how the linked suggestion really helps in this case. I interpret the solution to forward query parameters through the shortener, but wouldn't that imply sending them in the URL itself? The problem is the length of said URL (where the parameters are a significant part).
I interpret this discussion as if this is currently not doable in ACS in any sensible way. Hopefully the API:s and/or product will make this possible.
Thanks for your response. As I mentioned we are familiar with how to accomplish this in classic. I don't see how any of those approaches would work in Standard though, and was looking for ideas for a possible work around or other approach.