Just in case it’s helpful to anyone, I discovered a pretty good road case option for the iLive T80 surface. I couldn’t find anyone still making an off-the-shelf option, and anything custom would have been lots of $$$, so I took a chance on this case made for a Yamaha CL3- https://www.bhphotovideo.com/c/product/1551193-REG/prox_xs_ycl3_dhw_ata_roadcase_for_yamaha.html. The CL3 is a bit bigger than the T80, but with a few pieces of added foam and a little surgery, it fits like a glove!
Also, I wanted to thank everyone who’s posted on this forum in the last few months about the process of replacing the CMOS battery in the surface. Our T80 is back from the dead and lives to mix another day!