Very nice! Would you mind for some pics on your solution? I wouldn't mind adding some effort for a few tests for my score!
I couldn't find H110 available, but had to take the s24 for the case. I needed the longer tubes to try get the heat into a different chamber of the X71 case.
I have seen some threads where people extended the tubes of the s24/s36 range just for the ice bucket. Even Jayztwocents has a video trying this on an RTX2080ti, but that is with a complete custom solution.
Currently, my GPU hits about 39c in the day and about 31c this morning (nice and cool morning in Centurion) - but on the not-so-hot 1080ti.